Home / 87,800.37-131,687.18-28,635.95

Finding the Fourth Proportional to 87,800.37, 131,687.18 and 28,635.95

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Solution

The fourth proportional to 87,800.37, 131,687.18 and 28,635.95 is: 42,949.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,800.37 : 131,687.18 = 28,635.95 : x
  2. Step 2: Convert to fraction form
    87,800.37/131,687.18 = 28,635.95/x
  3. Step 3: Cross multiply
    87,800.37x = 131,687.18 × 28,635.95
  4. Step 4: Simplify right side
    87,800.37x = 3,770,986,700.51
  5. Step 5: Solve for x
    x = 3,770,986,700.51/87,800.37
  6. Step 6: Final answer
    x = 42,949.55

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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.