Home / 81,490.28-122,270.52-44,076.68

Finding the Fourth Proportional to 81,490.28, 122,270.52 and 44,076.68

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Solution

The fourth proportional to 81,490.28, 122,270.52 and 44,076.68 is: 66,134.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,490.28 : 122,270.52 = 44,076.68 : x
  2. Step 2: Convert to fraction form
    81,490.28/122,270.52 = 44,076.68/x
  3. Step 3: Cross multiply
    81,490.28x = 122,270.52 × 44,076.68
  4. Step 4: Simplify right side
    81,490.28x = 5,389,278,583.47
  5. Step 5: Solve for x
    x = 5,389,278,583.47/81,490.28
  6. Step 6: Final answer
    x = 66,134.00

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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.