Home / 80,839.38-121,297.56-36,479.73

Finding the Fourth Proportional to 80,839.38, 121,297.56 and 36,479.73

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Solution

The fourth proportional to 80,839.38, 121,297.56 and 36,479.73 is: 54,736.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,839.38 : 121,297.56 = 36,479.73 : x
  2. Step 2: Convert to fraction form
    80,839.38/121,297.56 = 36,479.73/x
  3. Step 3: Cross multiply
    80,839.38x = 121,297.56 × 36,479.73
  4. Step 4: Simplify right side
    80,839.38x = 4,424,902,238.46
  5. Step 5: Solve for x
    x = 4,424,902,238.46/80,839.38
  6. Step 6: Final answer
    x = 54,736.96

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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.