Home / 87,568.73-131,371.54-28,399.78

Finding the Fourth Proportional to 87,568.73, 131,371.54 and 28,399.78

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Solution

The fourth proportional to 87,568.73, 131,371.54 and 28,399.78 is: 42,605.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,568.73 : 131,371.54 = 28,399.78 : x
  2. Step 2: Convert to fraction form
    87,568.73/131,371.54 = 28,399.78/x
  3. Step 3: Cross multiply
    87,568.73x = 131,371.54 × 28,399.78
  4. Step 4: Simplify right side
    87,568.73x = 3,730,922,692.26
  5. Step 5: Solve for x
    x = 3,730,922,692.26/87,568.73
  6. Step 6: Final answer
    x = 42,605.65

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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.