Home / 68,142.12-102,204.54-50,637.48

Finding the Fourth Proportional to 68,142.12, 102,204.54 and 50,637.48

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Solution

The fourth proportional to 68,142.12, 102,204.54 and 50,637.48 is: 75,949.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,142.12 : 102,204.54 = 50,637.48 : x
  2. Step 2: Convert to fraction form
    68,142.12/102,204.54 = 50,637.48/x
  3. Step 3: Cross multiply
    68,142.12x = 102,204.54 × 50,637.48
  4. Step 4: Simplify right side
    68,142.12x = 5,175,380,350.16
  5. Step 5: Solve for x
    x = 5,175,380,350.16/68,142.12
  6. Step 6: Final answer
    x = 75,949.80

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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.