Home / 87,790.80-121,151.04-47,505.24

Finding the Fourth Proportional to 87,790.80, 121,151.04 and 47,505.24

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Solution

The fourth proportional to 87,790.80, 121,151.04 and 47,505.24 is: 65,557.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,790.80 : 121,151.04 = 47,505.24 : x
  2. Step 2: Convert to fraction form
    87,790.80/121,151.04 = 47,505.24/x
  3. Step 3: Cross multiply
    87,790.80x = 121,151.04 × 47,505.24
  4. Step 4: Simplify right side
    87,790.80x = 5,755,309,231.45
  5. Step 5: Solve for x
    x = 5,755,309,231.45/87,790.80
  6. Step 6: Final answer
    x = 65,557.09

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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.