The nth term of an arithmetic sequence is ,
Where = First term of the sequence and d = common difference.
The sequence three arithmetic means between 44 and 92.
\The sequence is , then
.
(Substitute
)
(Substitute
)
(Subtract:
)
Subtract 44 from each side.
\ (Subtract:
)
Divide each side by 4.
\d = 12 (Divide: )
The arithmetic means are 56, 68 and 80.