Home / 87,805.43-131,627.41-31,631.80

Finding the Fourth Proportional to 87,805.43, 131,627.41 and 31,631.80

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Solution

The fourth proportional to 87,805.43, 131,627.41 and 31,631.80 is: 47,418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,805.43 : 131,627.41 = 31,631.80 : x
  2. Step 2: Convert to fraction form
    87,805.43/131,627.41 = 31,631.80/x
  3. Step 3: Cross multiply
    87,805.43x = 131,627.41 × 31,631.80
  4. Step 4: Simplify right side
    87,805.43x = 4,163,611,499.49
  5. Step 5: Solve for x
    x = 4,163,611,499.49/87,805.43
  6. Step 6: Final answer
    x = 47,418.61

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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.