Home / 87,892.12-131,837.19-21,332.98

Finding the Fourth Proportional to 87,892.12, 131,837.19 and 21,332.98

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Solution

The fourth proportional to 87,892.12, 131,837.19 and 21,332.98 is: 31,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,892.12 : 131,837.19 = 21,332.98 : x
  2. Step 2: Convert to fraction form
    87,892.12/131,837.19 = 21,332.98/x
  3. Step 3: Cross multiply
    87,892.12x = 131,837.19 × 21,332.98
  4. Step 4: Simplify right side
    87,892.12x = 2,812,480,137.53
  5. Step 5: Solve for x
    x = 2,812,480,137.53/87,892.12
  6. Step 6: Final answer
    x = 31,999.23

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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.