Home / 79,713.20-109,996.08-49,081.43

Finding the Fourth Proportional to 79,713.20, 109,996.08 and 49,081.43

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Solution

The fourth proportional to 79,713.20, 109,996.08 and 49,081.43 is: 67,727.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,713.20 : 109,996.08 = 49,081.43 : x
  2. Step 2: Convert to fraction form
    79,713.20/109,996.08 = 49,081.43/x
  3. Step 3: Cross multiply
    79,713.20x = 109,996.08 × 49,081.43
  4. Step 4: Simplify right side
    79,713.20x = 5,398,764,900.79
  5. Step 5: Solve for x
    x = 5,398,764,900.79/79,713.20
  6. Step 6: Final answer
    x = 67,727.36

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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.