There is a better way. your data is related. putting it in two arrays unrelates it. you want a more complex structure. id say an array of hashrefs would be best. If you really want the indice for this example declare a counter variable outside of the for loop below. though my guess is you just want the related data.
my @names = (
{first=>"john",last=>"brown"},
{first=>"jacob",last=>"black"},
{first=>"jingle",last=>"gray"},
{first=>"heimer",last=>"greene"},
{first=>"smitz",last=>"purple"}
);
for my $name (@names){
print $name->{last} if $name->{first} eq 'heimer';
}
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