Home / 87,805.50-121,171.88-47,519.24

Finding the Fourth Proportional to 87,805.50, 121,171.88 and 47,519.24

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Solution

The fourth proportional to 87,805.50, 121,171.88 and 47,519.24 is: 65,576.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,805.50 : 121,171.88 = 47,519.24 : x
  2. Step 2: Convert to fraction form
    87,805.50/121,171.88 = 47,519.24/x
  3. Step 3: Cross multiply
    87,805.50x = 121,171.88 × 47,519.24
  4. Step 4: Simplify right side
    87,805.50x = 5,757,995,646.97
  5. Step 5: Solve for x
    x = 5,757,995,646.97/87,805.50
  6. Step 6: Final answer
    x = 65,576.71

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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.