Home / 57,243.27-85,872.72-19,793.28

Finding the Fourth Proportional to 57,243.27, 85,872.72 and 19,793.28

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Solution

The fourth proportional to 57,243.27, 85,872.72 and 19,793.28 is: 29,692.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,243.27 : 85,872.72 = 19,793.28 : x
  2. Step 2: Convert to fraction form
    57,243.27/85,872.72 = 19,793.28/x
  3. Step 3: Cross multiply
    57,243.27x = 85,872.72 × 19,793.28
  4. Step 4: Simplify right side
    57,243.27x = 1,699,702,791.32
  5. Step 5: Solve for x
    x = 1,699,702,791.32/57,243.27
  6. Step 6: Final answer
    x = 29,692.62

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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.