Home / 87,440.06-131,145.98-31,270.62

Finding the Fourth Proportional to 87,440.06, 131,145.98 and 31,270.62

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Solution

The fourth proportional to 87,440.06, 131,145.98 and 31,270.62 is: 46,900.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,440.06 : 131,145.98 = 31,270.62 : x
  2. Step 2: Convert to fraction form
    87,440.06/131,145.98 = 31,270.62/x
  3. Step 3: Cross multiply
    87,440.06x = 131,145.98 × 31,270.62
  4. Step 4: Simplify right side
    87,440.06x = 4,101,016,105.11
  5. Step 5: Solve for x
    x = 4,101,016,105.11/87,440.06
  6. Step 6: Final answer
    x = 46,900.88

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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.