Home / 55,417.28-83,076.30-20,348.73

Finding the Fourth Proportional to 55,417.28, 83,076.30 and 20,348.73

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Solution

The fourth proportional to 55,417.28, 83,076.30 and 20,348.73 is: 30,504.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,417.28 : 83,076.30 = 20,348.73 : x
  2. Step 2: Convert to fraction form
    55,417.28/83,076.30 = 20,348.73/x
  3. Step 3: Cross multiply
    55,417.28x = 83,076.30 × 20,348.73
  4. Step 4: Simplify right side
    55,417.28x = 1,690,497,198.10
  5. Step 5: Solve for x
    x = 1,690,497,198.10/55,417.28
  6. Step 6: Final answer
    x = 30,504.88

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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.