Home / 87,332.14-120,478.78-51,505.43

Finding the Fourth Proportional to 87,332.14, 120,478.78 and 51,505.43

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Solution

The fourth proportional to 87,332.14, 120,478.78 and 51,505.43 is: 71,054.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,332.14 : 120,478.78 = 51,505.43 : x
  2. Step 2: Convert to fraction form
    87,332.14/120,478.78 = 51,505.43/x
  3. Step 3: Cross multiply
    87,332.14x = 120,478.78 × 51,505.43
  4. Step 4: Simplify right side
    87,332.14x = 6,205,311,542.21
  5. Step 5: Solve for x
    x = 6,205,311,542.21/87,332.14
  6. Step 6: Final answer
    x = 71,054.16

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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.