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Finding the Fourth Proportional to 57,149.20, 85,687.80 and 23,892.40

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Solution

The fourth proportional to 57,149.20, 85,687.80 and 23,892.40 is: 35,823.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,149.20 : 85,687.80 = 23,892.40 : x
  2. Step 2: Convert to fraction form
    57,149.20/85,687.80 = 23,892.40/x
  3. Step 3: Cross multiply
    57,149.20x = 85,687.80 × 23,892.40
  4. Step 4: Simplify right side
    57,149.20x = 2,047,287,192.72
  5. Step 5: Solve for x
    x = 2,047,287,192.72/57,149.20
  6. Step 6: Final answer
    x = 35,823.55

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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.