Home / 82,428.27-123,638.97-38,040.27

Finding the Fourth Proportional to 82,428.27, 123,638.97 and 38,040.27

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Solution

The fourth proportional to 82,428.27, 123,638.97 and 38,040.27 is: 57,058.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,428.27 : 123,638.97 = 38,040.27 : x
  2. Step 2: Convert to fraction form
    82,428.27/123,638.97 = 38,040.27/x
  3. Step 3: Cross multiply
    82,428.27x = 123,638.97 × 38,040.27
  4. Step 4: Simplify right side
    82,428.27x = 4,703,259,801.32
  5. Step 5: Solve for x
    x = 4,703,259,801.32/82,428.27
  6. Step 6: Final answer
    x = 57,058.82

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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.