CREATE TABLE table_58731 ("Name" TEXT, "Total" FLOAT, "First" TEXT, "Last" TEXT, "Highest rank" TEXT)

What rank is Takat riki having less than 30 total?
SELECT "Highest rank" FROM table_58731 WHERE "Total" < '30' AND "Name" = 'takatōriki'
SELECT "Highest rank" FROM "table_58731" WHERE "Name" = 'takatōriki' AND "Total" < '30'