Home / 57,217.06-78,952.24-31,723.20

Finding the Fourth Proportional to 57,217.06, 78,952.24 and 31,723.20

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Solution

The fourth proportional to 57,217.06, 78,952.24 and 31,723.20 is: 43,773.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,217.06 : 78,952.24 = 31,723.20 : x
  2. Step 2: Convert to fraction form
    57,217.06/78,952.24 = 31,723.20/x
  3. Step 3: Cross multiply
    57,217.06x = 78,952.24 × 31,723.20
  4. Step 4: Simplify right side
    57,217.06x = 2,504,617,699.97
  5. Step 5: Solve for x
    x = 2,504,617,699.97/57,217.06
  6. Step 6: Final answer
    x = 43,773.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.