Home / 87,986.43-131,880.51-43,644.96

Finding the Fourth Proportional to 87,986.43, 131,880.51 and 43,644.96

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Solution

The fourth proportional to 87,986.43, 131,880.51 and 43,644.96 is: 65,418.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,986.43 : 131,880.51 = 43,644.96 : x
  2. Step 2: Convert to fraction form
    87,986.43/131,880.51 = 43,644.96/x
  3. Step 3: Cross multiply
    87,986.43x = 131,880.51 × 43,644.96
  4. Step 4: Simplify right side
    87,986.43x = 5,755,919,583.73
  5. Step 5: Solve for x
    x = 5,755,919,583.73/87,986.43
  6. Step 6: Final answer
    x = 65,418.26

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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.