Home / 82,040.40-123,078.02-25,896.74

Finding the Fourth Proportional to 82,040.40, 123,078.02 and 25,896.74

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Solution

The fourth proportional to 82,040.40, 123,078.02 and 25,896.74 is: 38,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,040.40 : 123,078.02 = 25,896.74 : x
  2. Step 2: Convert to fraction form
    82,040.40/123,078.02 = 25,896.74/x
  3. Step 3: Cross multiply
    82,040.40x = 123,078.02 × 25,896.74
  4. Step 4: Simplify right side
    82,040.40x = 3,187,318,738.78
  5. Step 5: Solve for x
    x = 3,187,318,738.78/82,040.40
  6. Step 6: Final answer
    x = 38,850.60

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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.