Home / 87,569.47-131,381.76-31,371.28

Finding the Fourth Proportional to 87,569.47, 131,381.76 and 31,371.28

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Solution

The fourth proportional to 87,569.47, 131,381.76 and 31,371.28 is: 47,066.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,569.47 : 131,381.76 = 31,371.28 : x
  2. Step 2: Convert to fraction form
    87,569.47/131,381.76 = 31,371.28/x
  3. Step 3: Cross multiply
    87,569.47x = 131,381.76 × 31,371.28
  4. Step 4: Simplify right side
    87,569.47x = 4,121,613,979.85
  5. Step 5: Solve for x
    x = 4,121,613,979.85/87,569.47
  6. Step 6: Final answer
    x = 47,066.79

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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.