Home / 87,821.88-131,739-35,231.37

Finding the Fourth Proportional to 87,821.88, 131,739 and 35,231.37

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Solution

The fourth proportional to 87,821.88, 131,739 and 35,231.37 is: 52,849.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,821.88 : 131,739 = 35,231.37 : x
  2. Step 2: Convert to fraction form
    87,821.88/131,739 = 35,231.37/x
  3. Step 3: Cross multiply
    87,821.88x = 131,739 × 35,231.37
  4. Step 4: Simplify right side
    87,821.88x = 4,641,345,452.43
  5. Step 5: Solve for x
    x = 4,641,345,452.43/87,821.88
  6. Step 6: Final answer
    x = 52,849.53

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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.