Home / 87,352.20-131,085.90-31,948.20

Finding the Fourth Proportional to 87,352.20, 131,085.90 and 31,948.20

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Solution

The fourth proportional to 87,352.20, 131,085.90 and 31,948.20 is: 47,943.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,352.20 : 131,085.90 = 31,948.20 : x
  2. Step 2: Convert to fraction form
    87,352.20/131,085.90 = 31,948.20/x
  3. Step 3: Cross multiply
    87,352.20x = 131,085.90 × 31,948.20
  4. Step 4: Simplify right side
    87,352.20x = 4,187,958,550.38
  5. Step 5: Solve for x
    x = 4,187,958,550.38/87,352.20
  6. Step 6: Final answer
    x = 47,943.37

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1.5x scale

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.