Chasing, 121 for victory, Rajasthan reached the target with losing only the wicket of Rahul Dravid (0) and with 21 balls remaining.
Rahane scored 62 runs off 53 balls as he hit five boundaries and two sixes in his knock.
Samson scored 50 runs off 42 balls. Both the batsmen remained unbeaten till the end.
Earlier, Rajasthan restricted Perth to 120 runs.
Adam Voges top scored with 27 runs as Perth were all out for 120 in 20 overs.
Kevon Cooper picked up four wickets for 18 runs in four overs while Pravin Tambe and James Faulkner took two wickets each.
--IBNS (Posted on 30-09-2013)