Home / 79,842.16-119,764.38-38,279.44

Finding the Fourth Proportional to 79,842.16, 119,764.38 and 38,279.44

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Solution

The fourth proportional to 79,842.16, 119,764.38 and 38,279.44 is: 57,419.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,842.16 : 119,764.38 = 38,279.44 : x
  2. Step 2: Convert to fraction form
    79,842.16/119,764.38 = 38,279.44/x
  3. Step 3: Cross multiply
    79,842.16x = 119,764.38 × 38,279.44
  4. Step 4: Simplify right side
    79,842.16x = 4,584,513,398.35
  5. Step 5: Solve for x
    x = 4,584,513,398.35/79,842.16
  6. Step 6: Final answer
    x = 57,419.71

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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.