Home / 87,822.95-131,755.38-28,658.72

Finding the Fourth Proportional to 87,822.95, 131,755.38 and 28,658.72

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Solution

The fourth proportional to 87,822.95, 131,755.38 and 28,658.72 is: 42,994.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,822.95 : 131,755.38 = 28,658.72 : x
  2. Step 2: Convert to fraction form
    87,822.95/131,755.38 = 28,658.72/x
  3. Step 3: Cross multiply
    87,822.95x = 131,755.38 × 28,658.72
  4. Step 4: Simplify right side
    87,822.95x = 3,775,940,765.83
  5. Step 5: Solve for x
    x = 3,775,940,765.83/87,822.95
  6. Step 6: Final answer
    x = 42,994.92

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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.