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Finding the Fourth Proportional to 57,269.28, 85,914.24 and 17,817.12

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Solution

The fourth proportional to 57,269.28, 85,914.24 and 17,817.12 is: 26,728.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,269.28 : 85,914.24 = 17,817.12 : x
  2. Step 2: Convert to fraction form
    57,269.28/85,914.24 = 17,817.12/x
  3. Step 3: Cross multiply
    57,269.28x = 85,914.24 × 17,817.12
  4. Step 4: Simplify right side
    57,269.28x = 1,530,744,323.79
  5. Step 5: Solve for x
    x = 1,530,744,323.79/57,269.28
  6. Step 6: Final answer
    x = 26,728.89

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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.