Home / 57,728.10-86,570.55-20,273.70

Finding the Fourth Proportional to 57,728.10, 86,570.55 and 20,273.70

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Solution

The fourth proportional to 57,728.10, 86,570.55 and 20,273.70 is: 30,402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,728.10 : 86,570.55 = 20,273.70 : x
  2. Step 2: Convert to fraction form
    57,728.10/86,570.55 = 20,273.70/x
  3. Step 3: Cross multiply
    57,728.10x = 86,570.55 × 20,273.70
  4. Step 4: Simplify right side
    57,728.10x = 1,755,105,359.54
  5. Step 5: Solve for x
    x = 1,755,105,359.54/57,728.10
  6. Step 6: Final answer
    x = 30,402.96

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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.