Home / 87,635.10-121,036.19-58,904.88

Finding the Fourth Proportional to 87,635.10, 121,036.19 and 58,904.88

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Solution

The fourth proportional to 87,635.10, 121,036.19 and 58,904.88 is: 81,355.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,635.10 : 121,036.19 = 58,904.88 : x
  2. Step 2: Convert to fraction form
    87,635.10/121,036.19 = 58,904.88/x
  3. Step 3: Cross multiply
    87,635.10x = 121,036.19 × 58,904.88
  4. Step 4: Simplify right side
    87,635.10x = 7,129,622,170.95
  5. Step 5: Solve for x
    x = 7,129,622,170.95/87,635.10
  6. Step 6: Final answer
    x = 81,355.78

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1.5x scale

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.