Home / 87,614.58-120,961.68-57,016.82

Finding the Fourth Proportional to 87,614.58, 120,961.68 and 57,016.82

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Solution

The fourth proportional to 87,614.58, 120,961.68 and 57,016.82 is: 78,718.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,614.58 : 120,961.68 = 57,016.82 : x
  2. Step 2: Convert to fraction form
    87,614.58/120,961.68 = 57,016.82/x
  3. Step 3: Cross multiply
    87,614.58x = 120,961.68 × 57,016.82
  4. Step 4: Simplify right side
    87,614.58x = 6,896,850,335.46
  5. Step 5: Solve for x
    x = 6,896,850,335.46/87,614.58
  6. Step 6: Final answer
    x = 78,718.07

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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.