Home / 81,650.24-122,361.24-44,129.40

Finding the Fourth Proportional to 81,650.24, 122,361.24 and 44,129.40

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Solution

The fourth proportional to 81,650.24, 122,361.24 and 44,129.40 is: 66,132.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,650.24 : 122,361.24 = 44,129.40 : x
  2. Step 2: Convert to fraction form
    81,650.24/122,361.24 = 44,129.40/x
  3. Step 3: Cross multiply
    81,650.24x = 122,361.24 × 44,129.40
  4. Step 4: Simplify right side
    81,650.24x = 5,399,728,104.46
  5. Step 5: Solve for x
    x = 5,399,728,104.46/81,650.24
  6. Step 6: Final answer
    x = 66,132.42

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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.