Home / 87,102.15-120,197.55-49,375.59

Finding the Fourth Proportional to 87,102.15, 120,197.55 and 49,375.59

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Solution

The fourth proportional to 87,102.15, 120,197.55 and 49,375.59 is: 68,136.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,102.15 : 120,197.55 = 49,375.59 : x
  2. Step 2: Convert to fraction form
    87,102.15/120,197.55 = 49,375.59/x
  3. Step 3: Cross multiply
    87,102.15x = 120,197.55 × 49,375.59
  4. Step 4: Simplify right side
    87,102.15x = 5,934,824,947.80
  5. Step 5: Solve for x
    x = 5,934,824,947.80/87,102.15
  6. Step 6: Final answer
    x = 68,136.38

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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.