Home / 87,348.24-131,028.84-28,211.76

Finding the Fourth Proportional to 87,348.24, 131,028.84 and 28,211.76

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Solution

The fourth proportional to 87,348.24, 131,028.84 and 28,211.76 is: 42,319.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,348.24 : 131,028.84 = 28,211.76 : x
  2. Step 2: Convert to fraction form
    87,348.24/131,028.84 = 28,211.76/x
  3. Step 3: Cross multiply
    87,348.24x = 131,028.84 × 28,211.76
  4. Step 4: Simplify right side
    87,348.24x = 3,696,554,187.16
  5. Step 5: Solve for x
    x = 3,696,554,187.16/87,348.24
  6. Step 6: Final answer
    x = 42,319.73

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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.