Home / 87,329.28-131,009.76-49,931.52

Finding the Fourth Proportional to 87,329.28, 131,009.76 and 49,931.52

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Solution

The fourth proportional to 87,329.28, 131,009.76 and 49,931.52 is: 74,906.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,329.28 : 131,009.76 = 49,931.52 : x
  2. Step 2: Convert to fraction form
    87,329.28/131,009.76 = 49,931.52/x
  3. Step 3: Cross multiply
    87,329.28x = 131,009.76 × 49,931.52
  4. Step 4: Simplify right side
    87,329.28x = 6,541,516,451.64
  5. Step 5: Solve for x
    x = 6,541,516,451.64/87,329.28
  6. Step 6: Final answer
    x = 74,906.34

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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.