Home / 80,920.92-121,399.20-24,761.46

Finding the Fourth Proportional to 80,920.92, 121,399.20 and 24,761.46

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Solution

The fourth proportional to 80,920.92, 121,399.20 and 24,761.46 is: 37,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,920.92 : 121,399.20 = 24,761.46 : x
  2. Step 2: Convert to fraction form
    80,920.92/121,399.20 = 24,761.46/x
  3. Step 3: Cross multiply
    80,920.92x = 121,399.20 × 24,761.46
  4. Step 4: Simplify right side
    80,920.92x = 3,006,021,434.83
  5. Step 5: Solve for x
    x = 3,006,021,434.83/80,920.92
  6. Step 6: Final answer
    x = 37,147.64

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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.