Home / 87,750.95-131,640.09-28,572.85

Finding the Fourth Proportional to 87,750.95, 131,640.09 and 28,572.85

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Solution

The fourth proportional to 87,750.95, 131,640.09 and 28,572.85 is: 42,863.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,750.95 : 131,640.09 = 28,572.85 : x
  2. Step 2: Convert to fraction form
    87,750.95/131,640.09 = 28,572.85/x
  3. Step 3: Cross multiply
    87,750.95x = 131,640.09 × 28,572.85
  4. Step 4: Simplify right side
    87,750.95x = 3,761,332,602.96
  5. Step 5: Solve for x
    x = 3,761,332,602.96/87,750.95
  6. Step 6: Final answer
    x = 42,863.73

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1.5x scale

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.