Home / 87,794.64-121,155.68-47,507.52

Finding the Fourth Proportional to 87,794.64, 121,155.68 and 47,507.52

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Solution

The fourth proportional to 87,794.64, 121,155.68 and 47,507.52 is: 65,559.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,794.64 : 121,155.68 = 47,507.52 : x
  2. Step 2: Convert to fraction form
    87,794.64/121,155.68 = 47,507.52/x
  3. Step 3: Cross multiply
    87,794.64x = 121,155.68 × 47,507.52
  4. Step 4: Simplify right side
    87,794.64x = 5,755,805,890.71
  5. Step 5: Solve for x
    x = 5,755,805,890.71/87,794.64
  6. Step 6: Final answer
    x = 65,559.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.