Home / 87,839.89-121,217.60-47,553.30

Finding the Fourth Proportional to 87,839.89, 121,217.60 and 47,553.30

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Solution

The fourth proportional to 87,839.89, 121,217.60 and 47,553.30 is: 65,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,839.89 : 121,217.60 = 47,553.30 : x
  2. Step 2: Convert to fraction form
    87,839.89/121,217.60 = 47,553.30/x
  3. Step 3: Cross multiply
    87,839.89x = 121,217.60 × 47,553.30
  4. Step 4: Simplify right side
    87,839.89x = 5,764,297,016.96
  5. Step 5: Solve for x
    x = 5,764,297,016.96/87,839.89
  6. Step 6: Final answer
    x = 65,622.77

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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.