Home / 82,211.49-123,067.53-52,650.10

Finding the Fourth Proportional to 82,211.49, 123,067.53 and 52,650.10

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Solution

The fourth proportional to 82,211.49, 123,067.53 and 52,650.10 is: 78,815.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,211.49 : 123,067.53 = 52,650.10 : x
  2. Step 2: Convert to fraction form
    82,211.49/123,067.53 = 52,650.10/x
  3. Step 3: Cross multiply
    82,211.49x = 123,067.53 × 52,650.10
  4. Step 4: Simplify right side
    82,211.49x = 6,479,517,761.25
  5. Step 5: Solve for x
    x = 6,479,517,761.25/82,211.49
  6. Step 6: Final answer
    x = 78,815.23

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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.