Home / 57,184.72-85,745.40-19,724.56

Finding the Fourth Proportional to 57,184.72, 85,745.40 and 19,724.56

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Solution

The fourth proportional to 57,184.72, 85,745.40 and 19,724.56 is: 29,575.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,184.72 : 85,745.40 = 19,724.56 : x
  2. Step 2: Convert to fraction form
    57,184.72/85,745.40 = 19,724.56/x
  3. Step 3: Cross multiply
    57,184.72x = 85,745.40 × 19,724.56
  4. Step 4: Simplify right side
    57,184.72x = 1,691,290,287.02
  5. Step 5: Solve for x
    x = 1,691,290,287.02/57,184.72
  6. Step 6: Final answer
    x = 29,575.91

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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.