Home / 87,968.85-131,874.84-31,796.43

Finding the Fourth Proportional to 87,968.85, 131,874.84 and 31,796.43

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Solution

The fourth proportional to 87,968.85, 131,874.84 and 31,796.43 is: 47,666.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,968.85 : 131,874.84 = 31,796.43 : x
  2. Step 2: Convert to fraction form
    87,968.85/131,874.84 = 31,796.43/x
  3. Step 3: Cross multiply
    87,968.85x = 131,874.84 × 31,796.43
  4. Step 4: Simplify right side
    87,968.85x = 4,193,149,118.82
  5. Step 5: Solve for x
    x = 4,193,149,118.82/87,968.85
  6. Step 6: Final answer
    x = 47,666.29

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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.