Home / 87,826.73-131,740.43-21,266.75

Finding the Fourth Proportional to 87,826.73, 131,740.43 and 21,266.75

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Solution

The fourth proportional to 87,826.73, 131,740.43 and 21,266.75 is: 31,900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,826.73 : 131,740.43 = 21,266.75 : x
  2. Step 2: Convert to fraction form
    87,826.73/131,740.43 = 21,266.75/x
  3. Step 3: Cross multiply
    87,826.73x = 131,740.43 × 21,266.75
  4. Step 4: Simplify right side
    87,826.73x = 2,801,690,789.70
  5. Step 5: Solve for x
    x = 2,801,690,789.70/87,826.73
  6. Step 6: Final answer
    x = 31,900.21

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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.