Home / 87,868.19-131,772.22-28,689.19

Finding the Fourth Proportional to 87,868.19, 131,772.22 and 28,689.19

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Solution

The fourth proportional to 87,868.19, 131,772.22 and 28,689.19 is: 43,023.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,868.19 : 131,772.22 = 28,689.19 : x
  2. Step 2: Convert to fraction form
    87,868.19/131,772.22 = 28,689.19/x
  3. Step 3: Cross multiply
    87,868.19x = 131,772.22 × 28,689.19
  4. Step 4: Simplify right side
    87,868.19x = 3,780,437,855.15
  5. Step 5: Solve for x
    x = 3,780,437,855.15/87,868.19
  6. Step 6: Final answer
    x = 43,023.96

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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.