Home / 81,729.78-122,366.24-44,155.22

Finding the Fourth Proportional to 81,729.78, 122,366.24 and 44,155.22

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Solution

The fourth proportional to 81,729.78, 122,366.24 and 44,155.22 is: 66,109.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,729.78 : 122,366.24 = 44,155.22 : x
  2. Step 2: Convert to fraction form
    81,729.78/122,366.24 = 44,155.22/x
  3. Step 3: Cross multiply
    81,729.78x = 122,366.24 × 44,155.22
  4. Step 4: Simplify right side
    81,729.78x = 5,403,108,247.77
  5. Step 5: Solve for x
    x = 5,403,108,247.77/81,729.78
  6. Step 6: Final answer
    x = 66,109.42

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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.