Home / 82,517.19-123,751.53-35,131.74

Finding the Fourth Proportional to 82,517.19, 123,751.53 and 35,131.74

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Solution

The fourth proportional to 82,517.19, 123,751.53 and 35,131.74 is: 52,687.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,517.19 : 123,751.53 = 35,131.74 : x
  2. Step 2: Convert to fraction form
    82,517.19/123,751.53 = 35,131.74/x
  3. Step 3: Cross multiply
    82,517.19x = 123,751.53 × 35,131.74
  4. Step 4: Simplify right side
    82,517.19x = 4,347,606,576.56
  5. Step 5: Solve for x
    x = 4,347,606,576.56/82,517.19
  6. Step 6: Final answer
    x = 52,687.28

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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.