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Finding the Fourth Proportional to 68,861.57, 103,292.37 and 22,147.25

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Solution

The fourth proportional to 68,861.57, 103,292.37 and 22,147.25 is: 33,220.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,861.57 : 103,292.37 = 22,147.25 : x
  2. Step 2: Convert to fraction form
    68,861.57/103,292.37 = 22,147.25/x
  3. Step 3: Cross multiply
    68,861.57x = 103,292.37 × 22,147.25
  4. Step 4: Simplify right side
    68,861.57x = 2,287,641,425.02
  5. Step 5: Solve for x
    x = 2,287,641,425.02/68,861.57
  6. Step 6: Final answer
    x = 33,220.87

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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.