Home / 87,933.35-131,912.33-28,757.23

Finding the Fourth Proportional to 87,933.35, 131,912.33 and 28,757.23

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Solution

The fourth proportional to 87,933.35, 131,912.33 and 28,757.23 is: 43,139.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,933.35 : 131,912.33 = 28,757.23 : x
  2. Step 2: Convert to fraction form
    87,933.35/131,912.33 = 28,757.23/x
  3. Step 3: Cross multiply
    87,933.35x = 131,912.33 × 28,757.23
  4. Step 4: Simplify right side
    87,933.35x = 3,793,433,213.65
  5. Step 5: Solve for x
    x = 3,793,433,213.65/87,933.35
  6. Step 6: Final answer
    x = 43,139.87

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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.