Home / 87,176.85-120,160.29-61,650.24

Finding the Fourth Proportional to 87,176.85, 120,160.29 and 61,650.24

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Solution

The fourth proportional to 87,176.85, 120,160.29 and 61,650.24 is: 84,975.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,176.85 : 120,160.29 = 61,650.24 : x
  2. Step 2: Convert to fraction form
    87,176.85/120,160.29 = 61,650.24/x
  3. Step 3: Cross multiply
    87,176.85x = 120,160.29 × 61,650.24
  4. Step 4: Simplify right side
    87,176.85x = 7,407,910,716.97
  5. Step 5: Solve for x
    x = 7,407,910,716.97/87,176.85
  6. Step 6: Final answer
    x = 84,975.66

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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.