Home / 87,122.76-120,266.12-58,866.72

Finding the Fourth Proportional to 87,122.76, 120,266.12 and 58,866.72

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Solution

The fourth proportional to 87,122.76, 120,266.12 and 58,866.72 is: 81,260.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,122.76 : 120,266.12 = 58,866.72 : x
  2. Step 2: Convert to fraction form
    87,122.76/120,266.12 = 58,866.72/x
  3. Step 3: Cross multiply
    87,122.76x = 120,266.12 × 58,866.72
  4. Step 4: Simplify right side
    87,122.76x = 7,079,672,011.53
  5. Step 5: Solve for x
    x = 7,079,672,011.53/87,122.76
  6. Step 6: Final answer
    x = 81,260.88

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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.