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Finding the Fourth Proportional to 68,874.78, 95,048.60 and 38,662.28

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Solution

The fourth proportional to 68,874.78, 95,048.60 and 38,662.28 is: 53,354.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,874.78 : 95,048.60 = 38,662.28 : x
  2. Step 2: Convert to fraction form
    68,874.78/95,048.60 = 38,662.28/x
  3. Step 3: Cross multiply
    68,874.78x = 95,048.60 × 38,662.28
  4. Step 4: Simplify right side
    68,874.78x = 3,674,795,586.81
  5. Step 5: Solve for x
    x = 3,674,795,586.81/68,874.78
  6. Step 6: Final answer
    x = 53,354.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.