Home / 87,220.48-120,359.68-49,506.88

Finding the Fourth Proportional to 87,220.48, 120,359.68 and 49,506.88

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Solution

The fourth proportional to 87,220.48, 120,359.68 and 49,506.88 is: 68,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,220.48 : 120,359.68 = 49,506.88 : x
  2. Step 2: Convert to fraction form
    87,220.48/120,359.68 = 49,506.88/x
  3. Step 3: Cross multiply
    87,220.48x = 120,359.68 × 49,506.88
  4. Step 4: Simplify right side
    87,220.48x = 5,958,632,234.60
  5. Step 5: Solve for x
    x = 5,958,632,234.60/87,220.48
  6. Step 6: Final answer
    x = 68,316.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.