Home / 87,507.83-131,229.54-31,332.71

Finding the Fourth Proportional to 87,507.83, 131,229.54 and 31,332.71

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Solution

The fourth proportional to 87,507.83, 131,229.54 and 31,332.71 is: 46,987.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,507.83 : 131,229.54 = 31,332.71 : x
  2. Step 2: Convert to fraction form
    87,507.83/131,229.54 = 31,332.71/x
  3. Step 3: Cross multiply
    87,507.83x = 131,229.54 × 31,332.71
  4. Step 4: Simplify right side
    87,507.83x = 4,111,776,464.11
  5. Step 5: Solve for x
    x = 4,111,776,464.11/87,507.83
  6. Step 6: Final answer
    x = 46,987.53

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1.5x scale

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.