Home / 87,693.53-131,559.75-40,920.89

Finding the Fourth Proportional to 87,693.53, 131,559.75 and 40,920.89

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Solution

The fourth proportional to 87,693.53, 131,559.75 and 40,920.89 is: 61,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,693.53 : 131,559.75 = 40,920.89 : x
  2. Step 2: Convert to fraction form
    87,693.53/131,559.75 = 40,920.89/x
  3. Step 3: Cross multiply
    87,693.53x = 131,559.75 × 40,920.89
  4. Step 4: Simplify right side
    87,693.53x = 5,383,541,400.38
  5. Step 5: Solve for x
    x = 5,383,541,400.38/87,693.53
  6. Step 6: Final answer
    x = 61,390.41

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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.