Home / 87,845.64-121,177.80-52,000.72

Finding the Fourth Proportional to 87,845.64, 121,177.80 and 52,000.72

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Solution

The fourth proportional to 87,845.64, 121,177.80 and 52,000.72 is: 71,731.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,845.64 : 121,177.80 = 52,000.72 : x
  2. Step 2: Convert to fraction form
    87,845.64/121,177.80 = 52,000.72/x
  3. Step 3: Cross multiply
    87,845.64x = 121,177.80 × 52,000.72
  4. Step 4: Simplify right side
    87,845.64x = 6,301,332,848.02
  5. Step 5: Solve for x
    x = 6,301,332,848.02/87,845.64
  6. Step 6: Final answer
    x = 71,731.88

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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.