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Finding the Fourth Proportional to 68,122.88, 102,183.13 and 30,656.44

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Solution

The fourth proportional to 68,122.88, 102,183.13 and 30,656.44 is: 45,984.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,122.88 : 102,183.13 = 30,656.44 : x
  2. Step 2: Convert to fraction form
    68,122.88/102,183.13 = 30,656.44/x
  3. Step 3: Cross multiply
    68,122.88x = 102,183.13 × 30,656.44
  4. Step 4: Simplify right side
    68,122.88x = 3,132,570,993.86
  5. Step 5: Solve for x
    x = 3,132,570,993.86/68,122.88
  6. Step 6: Final answer
    x = 45,984.12

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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.