Finding the Fourth Proportional to 86,615.13, 119,528.88 and 48,891.81
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Solution
The fourth proportional to 86,615.13, 119,528.88 and 48,891.81 is: 67,470.70
Step by Step Solution
- Step 1: Write the proportion equation
86,615.13 : 119,528.88 = 48,891.81 : x - Step 2: Convert to fraction form
86,615.13/119,528.88 = 48,891.81/x - Step 3: Cross multiply
86,615.13x = 119,528.88 × 48,891.81 - Step 4: Simplify right side
86,615.13x = 5,843,983,290.47 - Step 5: Solve for x
x = 5,843,983,290.47/86,615.13 - Step 6: Final answer
x = 67,470.70
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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.