Home / 87,121.44-120,275.28-59,936.76

Finding the Fourth Proportional to 87,121.44, 120,275.28 and 59,936.76

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Solution

The fourth proportional to 87,121.44, 120,275.28 and 59,936.76 is: 82,745.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,121.44 : 120,275.28 = 59,936.76 : x
  2. Step 2: Convert to fraction form
    87,121.44/120,275.28 = 59,936.76/x
  3. Step 3: Cross multiply
    87,121.44x = 120,275.28 × 59,936.76
  4. Step 4: Simplify right side
    87,121.44x = 7,208,910,591.29
  5. Step 5: Solve for x
    x = 7,208,910,591.29/87,121.44
  6. Step 6: Final answer
    x = 82,745.54

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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.