Home / 57,183.72-85,743.90-19,723.56

Finding the Fourth Proportional to 57,183.72, 85,743.90 and 19,723.56

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Solution

The fourth proportional to 57,183.72, 85,743.90 and 19,723.56 is: 29,574.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,183.72 : 85,743.90 = 19,723.56 : x
  2. Step 2: Convert to fraction form
    57,183.72/85,743.90 = 19,723.56/x
  3. Step 3: Cross multiply
    57,183.72x = 85,743.90 × 19,723.56
  4. Step 4: Simplify right side
    57,183.72x = 1,691,174,956.28
  5. Step 5: Solve for x
    x = 1,691,174,956.28/57,183.72
  6. Step 6: Final answer
    x = 29,574.41

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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.