Table schema:
CREATE TABLE table_name_71 (latitude INTEGER, geo_id VARCHAR, longitude VARCHAR, township VARCHAR)

Question: What is the latitude that has a longitude larger than -101.819319 in Martin and a GEO ID of 3809951140?
SQL: SELECT SUM(latitude) FROM table_name_71 WHERE longitude > -101.819319 AND township = "martin" AND geo_id = 3809951140