Home / 80,974.06-121,447.29-21,796.54

Finding the Fourth Proportional to 80,974.06, 121,447.29 and 21,796.54

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Solution

The fourth proportional to 80,974.06, 121,447.29 and 21,796.54 is: 32,691.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,974.06 : 121,447.29 = 21,796.54 : x
  2. Step 2: Convert to fraction form
    80,974.06/121,447.29 = 21,796.54/x
  3. Step 3: Cross multiply
    80,974.06x = 121,447.29 × 21,796.54
  4. Step 4: Simplify right side
    80,974.06x = 2,647,130,714.38
  5. Step 5: Solve for x
    x = 2,647,130,714.38/80,974.06
  6. Step 6: Final answer
    x = 32,691.10

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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.