Finding the Fourth Proportional to 86,341.17, 129,505.47 and 27,193.76
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Solution
The fourth proportional to 86,341.17, 129,505.47 and 27,193.76 is: 40,788.66
Step by Step Solution
- Step 1: Write the proportion equation
86,341.17 : 129,505.47 = 27,193.76 : x - Step 2: Convert to fraction form
86,341.17/129,505.47 = 27,193.76/x - Step 3: Cross multiply
86,341.17x = 129,505.47 × 27,193.76 - Step 4: Simplify right side
86,341.17x = 3,521,740,406.01 - Step 5: Solve for x
x = 3,521,740,406.01/86,341.17 - Step 6: Final answer
x = 40,788.66
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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.