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Finding the Fourth Proportional to 79,694.50, 119,489.80 and 36,982.40

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Solution

The fourth proportional to 79,694.50, 119,489.80 and 36,982.40 is: 55,449.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,694.50 : 119,489.80 = 36,982.40 : x
  2. Step 2: Convert to fraction form
    79,694.50/119,489.80 = 36,982.40/x
  3. Step 3: Cross multiply
    79,694.50x = 119,489.80 × 36,982.40
  4. Step 4: Simplify right side
    79,694.50x = 4,419,019,579.52
  5. Step 5: Solve for x
    x = 4,419,019,579.52/79,694.50
  6. Step 6: Final answer
    x = 55,449.49

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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.