Home / 87,629.94-131,406.03-54,348.66

Finding the Fourth Proportional to 87,629.94, 131,406.03 and 54,348.66

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Solution

The fourth proportional to 87,629.94, 131,406.03 and 54,348.66 is: 81,498.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,629.94 : 131,406.03 = 54,348.66 : x
  2. Step 2: Convert to fraction form
    87,629.94/131,406.03 = 54,348.66/x
  3. Step 3: Cross multiply
    87,629.94x = 131,406.03 × 54,348.66
  4. Step 4: Simplify right side
    87,629.94x = 7,141,741,646.42
  5. Step 5: Solve for x
    x = 7,141,741,646.42/87,629.94
  6. Step 6: Final answer
    x = 81,498.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.