Home / 82,408.48-123,612.66-29,805.70

Finding the Fourth Proportional to 82,408.48, 123,612.66 and 29,805.70

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Solution

The fourth proportional to 82,408.48, 123,612.66 and 29,805.70 is: 44,708.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,408.48 : 123,612.66 = 29,805.70 : x
  2. Step 2: Convert to fraction form
    82,408.48/123,612.66 = 29,805.70/x
  3. Step 3: Cross multiply
    82,408.48x = 123,612.66 × 29,805.70
  4. Step 4: Simplify right side
    82,408.48x = 3,684,361,860.16
  5. Step 5: Solve for x
    x = 3,684,361,860.16/82,408.48
  6. Step 6: Final answer
    x = 44,708.53

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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.