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Finding the Fourth Proportional to 67,156.92, 100,720.92 and 27,703.80

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Solution

The fourth proportional to 67,156.92, 100,720.92 and 27,703.80 is: 41,549.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,156.92 : 100,720.92 = 27,703.80 : x
  2. Step 2: Convert to fraction form
    67,156.92/100,720.92 = 27,703.80/x
  3. Step 3: Cross multiply
    67,156.92x = 100,720.92 × 27,703.80
  4. Step 4: Simplify right side
    67,156.92x = 2,790,352,223.50
  5. Step 5: Solve for x
    x = 2,790,352,223.50/67,156.92
  6. Step 6: Final answer
    x = 41,549.73

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.