Finding the Fourth Proportional to 81,201.24, 121,800.52 and 24,275.28
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Solution
The fourth proportional to 81,201.24, 121,800.52 and 24,275.28 is: 36,412.52
Step by Step Solution
- Step 1: Write the proportion equation
81,201.24 : 121,800.52 = 24,275.28 : x - Step 2: Convert to fraction form
81,201.24/121,800.52 = 24,275.28/x - Step 3: Cross multiply
81,201.24x = 121,800.52 × 24,275.28 - Step 4: Simplify right side
81,201.24x = 2,956,741,727.15 - Step 5: Solve for x
x = 2,956,741,727.15/81,201.24 - Step 6: Final answer
x = 36,412.52
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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.