Hoping to rebound from their loss to the Packers the 49ers played on home ground for an NFC West rivalry match against the Seahawks. The 49ers took the lead first with QB Alex Smith completing a 42-yard TD pass to TE Vernon Davis, but the Seahawks replied with QB Matt Hasselbeck throwing an 11-yard TD pass to WR Ruvell Martin. The 49ers made a large scoring rally to increase their lead when kicker Jeff Reed hit a 33 and a 44-yard field goal, followed by Smith completing a 15 and a 62-yard TD pass to Josh Morgan and Brian Westbrook respectively. This was followed by Reed making a 22-yard field goal, and in the third quarter with FS Dashon Goldson returning an interception 39 yards for a touchdown. After that, Reed nailed a 36-yard field goal to put the 49ers up 40-7. The lead was broken down with RB Leon Washington returning the kickoff 92 yards for a touchdown, followed in the 4th quarter by QB Matt Hasselbeck getting a 2-yard TD pass to WR Deon Butler.

How many yards longer was Alex Smith's longest touchdown pass compared to his shortest?
47