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Finding the Fourth Proportional to 79,761.62, 119,669.60 and 50,144.78

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Solution

The fourth proportional to 79,761.62, 119,669.60 and 50,144.78 is: 75,234.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,761.62 : 119,669.60 = 50,144.78 : x
  2. Step 2: Convert to fraction form
    79,761.62/119,669.60 = 50,144.78/x
  3. Step 3: Cross multiply
    79,761.62x = 119,669.60 × 50,144.78
  4. Step 4: Simplify right side
    79,761.62x = 6,000,806,189.22
  5. Step 5: Solve for x
    x = 6,000,806,189.22/79,761.62
  6. Step 6: Final answer
    x = 75,234.25

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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.