Home / 87,920.66-131,879.34-27,948.80

Finding the Fourth Proportional to 87,920.66, 131,879.34 and 27,948.80

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Solution

The fourth proportional to 87,920.66, 131,879.34 and 27,948.80 is: 41,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,920.66 : 131,879.34 = 27,948.80 : x
  2. Step 2: Convert to fraction form
    87,920.66/131,879.34 = 27,948.80/x
  3. Step 3: Cross multiply
    87,920.66x = 131,879.34 × 27,948.80
  4. Step 4: Simplify right side
    87,920.66x = 3,685,869,297.79
  5. Step 5: Solve for x
    x = 3,685,869,297.79/87,920.66
  6. Step 6: Final answer
    x = 41,922.68

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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.