Finding the Fourth Proportional to 86,521.17, 129,780.99 and 27,356.88
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Solution
The fourth proportional to 86,521.17, 129,780.99 and 27,356.88 is: 41,035.08
Step by Step Solution
- Step 1: Write the proportion equation
86,521.17 : 129,780.99 = 27,356.88 : x - Step 2: Convert to fraction form
86,521.17/129,780.99 = 27,356.88/x - Step 3: Cross multiply
86,521.17x = 129,780.99 × 27,356.88 - Step 4: Simplify right side
86,521.17x = 3,550,402,969.71 - Step 5: Solve for x
x = 3,550,402,969.71/86,521.17 - Step 6: Final answer
x = 41,035.08
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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.