Home / 87,892.36-131,837.42-21,333

Finding the Fourth Proportional to 87,892.36, 131,837.42 and 21,333

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Solution

The fourth proportional to 87,892.36, 131,837.42 and 21,333 is: 31,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,892.36 : 131,837.42 = 21,333 : x
  2. Step 2: Convert to fraction form
    87,892.36/131,837.42 = 21,333/x
  3. Step 3: Cross multiply
    87,892.36x = 131,837.42 × 21,333
  4. Step 4: Simplify right side
    87,892.36x = 2,812,487,680.86
  5. Step 5: Solve for x
    x = 2,812,487,680.86/87,892.36
  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.