Home / 87,966.11-121,390.28-52,134.85

Finding the Fourth Proportional to 87,966.11, 121,390.28 and 52,134.85

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Solution

The fourth proportional to 87,966.11, 121,390.28 and 52,134.85 is: 71,944.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,966.11 : 121,390.28 = 52,134.85 : x
  2. Step 2: Convert to fraction form
    87,966.11/121,390.28 = 52,134.85/x
  3. Step 3: Cross multiply
    87,966.11x = 121,390.28 × 52,134.85
  4. Step 4: Simplify right side
    87,966.11x = 6,328,663,171.63
  5. Step 5: Solve for x
    x = 6,328,663,171.63/87,966.11
  6. Step 6: Final answer
    x = 71,944.34

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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.