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Finding the Fourth Proportional to 68,609.48, 102,914.22 and 45,230.44

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Solution

The fourth proportional to 68,609.48, 102,914.22 and 45,230.44 is: 67,845.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,609.48 : 102,914.22 = 45,230.44 : x
  2. Step 2: Convert to fraction form
    68,609.48/102,914.22 = 45,230.44/x
  3. Step 3: Cross multiply
    68,609.48x = 102,914.22 × 45,230.44
  4. Step 4: Simplify right side
    68,609.48x = 4,654,855,452.86
  5. Step 5: Solve for x
    x = 4,654,855,452.86/68,609.48
  6. Step 6: Final answer
    x = 67,845.66

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Similar ratio
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1.5x scale

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.