Home / 80,761.87-121,148.96-24,606.78

Finding the Fourth Proportional to 80,761.87, 121,148.96 and 24,606.78

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Solution

The fourth proportional to 80,761.87, 121,148.96 and 24,606.78 is: 36,912.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,761.87 : 121,148.96 = 24,606.78 : x
  2. Step 2: Convert to fraction form
    80,761.87/121,148.96 = 24,606.78/x
  3. Step 3: Cross multiply
    80,761.87x = 121,148.96 × 24,606.78
  4. Step 4: Simplify right side
    80,761.87x = 2,981,085,077.17
  5. Step 5: Solve for x
    x = 2,981,085,077.17/80,761.87
  6. Step 6: Final answer
    x = 36,912.04

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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.