Finding the Fourth Proportional to 81,111.29, 121,646.44 and 24,172.06
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Solution
The fourth proportional to 81,111.29, 121,646.44 and 24,172.06 is: 36,251.99
Step by Step Solution
- Step 1: Write the proportion equation
81,111.29 : 121,646.44 = 24,172.06 : x - Step 2: Convert to fraction form
81,111.29/121,646.44 = 24,172.06/x - Step 3: Cross multiply
81,111.29x = 121,646.44 × 24,172.06 - Step 4: Simplify right side
81,111.29x = 2,940,445,471.91 - Step 5: Solve for x
x = 2,940,445,471.91/81,111.29 - Step 6: Final answer
x = 36,251.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.