Home / 82,613.36-123,934.62-29,321.64

Finding the Fourth Proportional to 82,613.36, 123,934.62 and 29,321.64

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Solution

The fourth proportional to 82,613.36, 123,934.62 and 29,321.64 is: 43,987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,613.36 : 123,934.62 = 29,321.64 : x
  2. Step 2: Convert to fraction form
    82,613.36/123,934.62 = 29,321.64/x
  3. Step 3: Cross multiply
    82,613.36x = 123,934.62 × 29,321.64
  4. Step 4: Simplify right side
    82,613.36x = 3,633,966,311.18
  5. Step 5: Solve for x
    x = 3,633,966,311.18/82,613.36
  6. Step 6: Final answer
    x = 43,987.63

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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.