Home / 87,932.57-131,714.33-69,123

Finding the Fourth Proportional to 87,932.57, 131,714.33 and 69,123

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Solution

The fourth proportional to 87,932.57, 131,714.33 and 69,123 is: 103,539.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,932.57 : 131,714.33 = 69,123 : x
  2. Step 2: Convert to fraction form
    87,932.57/131,714.33 = 69,123/x
  3. Step 3: Cross multiply
    87,932.57x = 131,714.33 × 69,123
  4. Step 4: Simplify right side
    87,932.57x = 9,104,489,286.98
  5. Step 5: Solve for x
    x = 9,104,489,286.98/87,932.57
  6. Step 6: Final answer
    x = 103,539.45

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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.