Home / 81,626.31-122,464.07-29,028.96

Finding the Fourth Proportional to 81,626.31, 122,464.07 and 29,028.96

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Solution

The fourth proportional to 81,626.31, 122,464.07 and 29,028.96 is: 43,552.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,626.31 : 122,464.07 = 29,028.96 : x
  2. Step 2: Convert to fraction form
    81,626.31/122,464.07 = 29,028.96/x
  3. Step 3: Cross multiply
    81,626.31x = 122,464.07 × 29,028.96
  4. Step 4: Simplify right side
    81,626.31x = 3,555,004,589.47
  5. Step 5: Solve for x
    x = 3,555,004,589.47/81,626.31
  6. Step 6: Final answer
    x = 43,552.19

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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.