Home / 87,767.88-121,123.11-51,464.28

Finding the Fourth Proportional to 87,767.88, 121,123.11 and 51,464.28

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Solution

The fourth proportional to 87,767.88, 121,123.11 and 51,464.28 is: 71,022.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,767.88 : 121,123.11 = 51,464.28 : x
  2. Step 2: Convert to fraction form
    87,767.88/121,123.11 = 51,464.28/x
  3. Step 3: Cross multiply
    87,767.88x = 121,123.11 × 51,464.28
  4. Step 4: Simplify right side
    87,767.88x = 6,233,514,294.71
  5. Step 5: Solve for x
    x = 6,233,514,294.71/87,767.88
  6. Step 6: Final answer
    x = 71,022.73

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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.