Home / 82,079.75-123,135.83-25,928.53

Finding the Fourth Proportional to 82,079.75, 123,135.83 and 25,928.53

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Solution

The fourth proportional to 82,079.75, 123,135.83 and 25,928.53 is: 38,897.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,079.75 : 123,135.83 = 25,928.53 : x
  2. Step 2: Convert to fraction form
    82,079.75/123,135.83 = 25,928.53/x
  3. Step 3: Cross multiply
    82,079.75x = 123,135.83 × 25,928.53
  4. Step 4: Simplify right side
    82,079.75x = 3,192,731,062.23
  5. Step 5: Solve for x
    x = 3,192,731,062.23/82,079.75
  6. Step 6: Final answer
    x = 38,897.91

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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.