Home / 87,340.50-131,010.75-21,676.50

Finding the Fourth Proportional to 87,340.50, 131,010.75 and 21,676.50

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Solution

The fourth proportional to 87,340.50, 131,010.75 and 21,676.50 is: 32,514.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,340.50 : 131,010.75 = 21,676.50 : x
  2. Step 2: Convert to fraction form
    87,340.50/131,010.75 = 21,676.50/x
  3. Step 3: Cross multiply
    87,340.50x = 131,010.75 × 21,676.50
  4. Step 4: Simplify right side
    87,340.50x = 2,839,854,522.38
  5. Step 5: Solve for x
    x = 2,839,854,522.38/87,340.50
  6. Step 6: Final answer
    x = 32,514.75

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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.