Home / 87,617.30-131,231.55-34,999.70

Finding the Fourth Proportional to 87,617.30, 131,231.55 and 34,999.70

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Solution

The fourth proportional to 87,617.30, 131,231.55 and 34,999.70 is: 52,421.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,617.30 : 131,231.55 = 34,999.70 : x
  2. Step 2: Convert to fraction form
    87,617.30/131,231.55 = 34,999.70/x
  3. Step 3: Cross multiply
    87,617.30x = 131,231.55 × 34,999.70
  4. Step 4: Simplify right side
    87,617.30x = 4,593,064,880.54
  5. Step 5: Solve for x
    x = 4,593,064,880.54/87,617.30
  6. Step 6: Final answer
    x = 52,421.89

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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.