Finding the Fourth Proportional to 86,251.49, 129,382.71 and 27,089.49
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Solution
The fourth proportional to 86,251.49, 129,382.71 and 27,089.49 is: 40,635.96
Step by Step Solution
- Step 1: Write the proportion equation
86,251.49 : 129,382.71 = 27,089.49 : x - Step 2: Convert to fraction form
86,251.49/129,382.71 = 27,089.49/x - Step 3: Cross multiply
86,251.49x = 129,382.71 × 27,089.49 - Step 4: Simplify right side
86,251.49x = 3,504,911,628.72 - Step 5: Solve for x
x = 3,504,911,628.72/86,251.49 - Step 6: Final answer
x = 40,635.96
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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.