Home / 87,495.75-131,120.60-49,999.64

Finding the Fourth Proportional to 87,495.75, 131,120.60 and 49,999.64

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Solution

The fourth proportional to 87,495.75, 131,120.60 and 49,999.64 is: 74,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,495.75 : 131,120.60 = 49,999.64 : x
  2. Step 2: Convert to fraction form
    87,495.75/131,120.60 = 49,999.64/x
  3. Step 3: Cross multiply
    87,495.75x = 131,120.60 × 49,999.64
  4. Step 4: Simplify right side
    87,495.75x = 6,555,981,890.98
  5. Step 5: Solve for x
    x = 6,555,981,890.98/87,495.75
  6. Step 6: Final answer
    x = 74,929.15

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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.