Home / 66,631.12-99,974.37-29,171.90

Finding the Fourth Proportional to 66,631.12, 99,974.37 and 29,171.90

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Solution

The fourth proportional to 66,631.12, 99,974.37 and 29,171.90 is: 43,769.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,631.12 : 99,974.37 = 29,171.90 : x
  2. Step 2: Convert to fraction form
    66,631.12/99,974.37 = 29,171.90/x
  3. Step 3: Cross multiply
    66,631.12x = 99,974.37 × 29,171.90
  4. Step 4: Simplify right side
    66,631.12x = 2,916,442,324.20
  5. Step 5: Solve for x
    x = 2,916,442,324.20/66,631.12
  6. Step 6: Final answer
    x = 43,769.97

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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.