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Finding the Fourth Proportional to 57,154.20, 85,744.80 and 23,855.76

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Solution

The fourth proportional to 57,154.20, 85,744.80 and 23,855.76 is: 35,789.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,154.20 : 85,744.80 = 23,855.76 : x
  2. Step 2: Convert to fraction form
    57,154.20/85,744.80 = 23,855.76/x
  3. Step 3: Cross multiply
    57,154.20x = 85,744.80 × 23,855.76
  4. Step 4: Simplify right side
    57,154.20x = 2,045,507,370.05
  5. Step 5: Solve for x
    x = 2,045,507,370.05/57,154.20
  6. Step 6: Final answer
    x = 35,789.27

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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.