Home / 57,744.32-86,617.20-20,305.52

Finding the Fourth Proportional to 57,744.32, 86,617.20 and 20,305.52

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Solution

The fourth proportional to 57,744.32, 86,617.20 and 20,305.52 is: 30,458.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,744.32 : 86,617.20 = 20,305.52 : x
  2. Step 2: Convert to fraction form
    57,744.32/86,617.20 = 20,305.52/x
  3. Step 3: Cross multiply
    57,744.32x = 86,617.20 × 20,305.52
  4. Step 4: Simplify right side
    57,744.32x = 1,758,807,286.94
  5. Step 5: Solve for x
    x = 1,758,807,286.94/57,744.32
  6. Step 6: Final answer
    x = 30,458.53

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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.