Whenever any law of this state shall require that a proposition or question shall be adopted by a majority of the qualified electors of this state, of a city, or of a county based on the total number of electors of the state, city, or county, appearing on the certified list of all qualified electors thereof, the majority required for the adoption of the proposition or question hereafter shall be deemed to be the majority of the qualified electors of the state, city, or county voting on the proposition or question at the election.