Home / 87,404.10-120,614.07-51,605.65

Finding the Fourth Proportional to 87,404.10, 120,614.07 and 51,605.65

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Solution

The fourth proportional to 87,404.10, 120,614.07 and 51,605.65 is: 71,213.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,404.10 : 120,614.07 = 51,605.65 : x
  2. Step 2: Convert to fraction form
    87,404.10/120,614.07 = 51,605.65/x
  3. Step 3: Cross multiply
    87,404.10x = 120,614.07 × 51,605.65
  4. Step 4: Simplify right side
    87,404.10x = 6,224,367,481.50
  5. Step 5: Solve for x
    x = 6,224,367,481.50/87,404.10
  6. Step 6: Final answer
    x = 71,213.68

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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.