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Finding the Fourth Proportional to 68,764.56, 103,269.54 and 56,308.38

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Solution

The fourth proportional to 68,764.56, 103,269.54 and 56,308.38 is: 84,563.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,764.56 : 103,269.54 = 56,308.38 : x
  2. Step 2: Convert to fraction form
    68,764.56/103,269.54 = 56,308.38/x
  3. Step 3: Cross multiply
    68,764.56x = 103,269.54 × 56,308.38
  4. Step 4: Simplify right side
    68,764.56x = 5,814,940,500.75
  5. Step 5: Solve for x
    x = 5,814,940,500.75/68,764.56
  6. Step 6: Final answer
    x = 84,563.04

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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.