Home / 57,851.57-86,790.38-20,414.31

Finding the Fourth Proportional to 57,851.57, 86,790.38 and 20,414.31

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Solution

The fourth proportional to 57,851.57, 86,790.38 and 20,414.31 is: 30,626.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,851.57 : 86,790.38 = 20,414.31 : x
  2. Step 2: Convert to fraction form
    57,851.57/86,790.38 = 20,414.31/x
  3. Step 3: Cross multiply
    57,851.57x = 86,790.38 × 20,414.31
  4. Step 4: Simplify right side
    57,851.57x = 1,771,765,620.27
  5. Step 5: Solve for x
    x = 1,771,765,620.27/57,851.57
  6. Step 6: Final answer
    x = 30,626.06

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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.