Home / 87,961.35-131,942.13-21,401.49

Finding the Fourth Proportional to 87,961.35, 131,942.13 and 21,401.49

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Solution

The fourth proportional to 87,961.35, 131,942.13 and 21,401.49 is: 32,102.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,961.35 : 131,942.13 = 21,401.49 : x
  2. Step 2: Convert to fraction form
    87,961.35/131,942.13 = 21,401.49/x
  3. Step 3: Cross multiply
    87,961.35x = 131,942.13 × 21,401.49
  4. Step 4: Simplify right side
    87,961.35x = 2,823,758,175.77
  5. Step 5: Solve for x
    x = 2,823,758,175.77/87,961.35
  6. Step 6: Final answer
    x = 32,102.26

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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.