Home / 87,004.16-120,123.59-66,824.97

Finding the Fourth Proportional to 87,004.16, 120,123.59 and 66,824.97

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Solution

The fourth proportional to 87,004.16, 120,123.59 and 66,824.97 is: 92,262.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,004.16 : 120,123.59 = 66,824.97 : x
  2. Step 2: Convert to fraction form
    87,004.16/120,123.59 = 66,824.97/x
  3. Step 3: Cross multiply
    87,004.16x = 120,123.59 × 66,824.97
  4. Step 4: Simplify right side
    87,004.16x = 8,027,254,963.92
  5. Step 5: Solve for x
    x = 8,027,254,963.92/87,004.16
  6. Step 6: Final answer
    x = 92,262.88

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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.