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Finding the Fourth Proportional to 68,410.80, 102,627 and 28,968.16

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Solution

The fourth proportional to 68,410.80, 102,627 and 28,968.16 is: 43,456.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,410.80 : 102,627 = 28,968.16 : x
  2. Step 2: Convert to fraction form
    68,410.80/102,627 = 28,968.16/x
  3. Step 3: Cross multiply
    68,410.80x = 102,627 × 28,968.16
  4. Step 4: Simplify right side
    68,410.80x = 2,972,915,356.32
  5. Step 5: Solve for x
    x = 2,972,915,356.32/68,410.80
  6. Step 6: Final answer
    x = 43,456.81

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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.