Home / 87,956.88-131,934.20-21,397.06

Finding the Fourth Proportional to 87,956.88, 131,934.20 and 21,397.06

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Solution

The fourth proportional to 87,956.88, 131,934.20 and 21,397.06 is: 32,095.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,956.88 : 131,934.20 = 21,397.06 : x
  2. Step 2: Convert to fraction form
    87,956.88/131,934.20 = 21,397.06/x
  3. Step 3: Cross multiply
    87,956.88x = 131,934.20 × 21,397.06
  4. Step 4: Simplify right side
    87,956.88x = 2,823,003,993.45
  5. Step 5: Solve for x
    x = 2,823,003,993.45/87,956.88
  6. Step 6: Final answer
    x = 32,095.32

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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.