Finding the Fourth Proportional to 81,134.93, 121,713.90 and 24,979.70
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Solution
The fourth proportional to 81,134.93, 121,713.90 and 24,979.70 is: 37,473.09
Step by Step Solution
- Step 1: Write the proportion equation
81,134.93 : 121,713.90 = 24,979.70 : x - Step 2: Convert to fraction form
81,134.93/121,713.90 = 24,979.70/x - Step 3: Cross multiply
81,134.93x = 121,713.90 × 24,979.70 - Step 4: Simplify right side
81,134.93x = 3,040,376,707.83 - Step 5: Solve for x
x = 3,040,376,707.83/81,134.93 - Step 6: Final answer
x = 37,473.09
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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.