Finding the Fourth Proportional to 86,563.31, 129,864.42 and 27,402.53
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Solution
The fourth proportional to 86,563.31, 129,864.42 and 27,402.53 is: 41,109.95
Step by Step Solution
- Step 1: Write the proportion equation
86,563.31 : 129,864.42 = 27,402.53 : x - Step 2: Convert to fraction form
86,563.31/129,864.42 = 27,402.53/x - Step 3: Cross multiply
86,563.31x = 129,864.42 × 27,402.53 - Step 4: Simplify right side
86,563.31x = 3,558,613,664.98 - Step 5: Solve for x
x = 3,558,613,664.98/86,563.31 - Step 6: Final answer
x = 41,109.95
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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.