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Finding the Fourth Proportional to 57,173.64, 85,747.56 and 19,732.20

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Solution

The fourth proportional to 57,173.64, 85,747.56 and 19,732.20 is: 29,593.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,173.64 : 85,747.56 = 19,732.20 : x
  2. Step 2: Convert to fraction form
    57,173.64/85,747.56 = 19,732.20/x
  3. Step 3: Cross multiply
    57,173.64x = 85,747.56 × 19,732.20
  4. Step 4: Simplify right side
    57,173.64x = 1,691,988,003.43
  5. Step 5: Solve for x
    x = 1,691,988,003.43/57,173.64
  6. Step 6: Final answer
    x = 29,593.85

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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.