Home / 87,354.78-131,062.91-43,012.68

Finding the Fourth Proportional to 87,354.78, 131,062.91 and 43,012.68

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Solution

The fourth proportional to 87,354.78, 131,062.91 and 43,012.68 is: 64,534.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,354.78 : 131,062.91 = 43,012.68 : x
  2. Step 2: Convert to fraction form
    87,354.78/131,062.91 = 43,012.68/x
  3. Step 3: Cross multiply
    87,354.78x = 131,062.91 × 43,012.68
  4. Step 4: Simplify right side
    87,354.78x = 5,637,367,007.70
  5. Step 5: Solve for x
    x = 5,637,367,007.70/87,354.78
  6. Step 6: Final answer
    x = 64,534.16

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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.