Finding the Fourth Proportional to 112,539.05, 155,297.62 and 61,541.63
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Solution
The fourth proportional to 112,539.05, 155,297.62 and 61,541.63 is: 84,924.02
Step by Step Solution
- Step 1: Write the proportion equation
112,539.05 : 155,297.62 = 61,541.63 : x - Step 2: Convert to fraction form
112,539.05/155,297.62 = 61,541.63/x - Step 3: Cross multiply
112,539.05x = 155,297.62 × 61,541.63 - Step 4: Simplify right side
112,539.05x = 9,557,268,669.92 - Step 5: Solve for x
x = 9,557,268,669.92/112,539.05 - Step 6: Final answer
x = 84,924.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.