Home / 82,687.41-124,131.96-54,631.44

Finding the Fourth Proportional to 82,687.41, 124,131.96 and 54,631.44

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Solution

The fourth proportional to 82,687.41, 124,131.96 and 54,631.44 is: 82,013.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,687.41 : 124,131.96 = 54,631.44 : x
  2. Step 2: Convert to fraction form
    82,687.41/124,131.96 = 54,631.44/x
  3. Step 3: Cross multiply
    82,687.41x = 124,131.96 × 54,631.44
  4. Step 4: Simplify right side
    82,687.41x = 6,781,507,724.82
  5. Step 5: Solve for x
    x = 6,781,507,724.82/82,687.41
  6. Step 6: Final answer
    x = 82,013.79

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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.