Home / 57,212.74-78,958.24-31,727.09

Finding the Fourth Proportional to 57,212.74, 78,958.24 and 31,727.09

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Solution

The fourth proportional to 57,212.74, 78,958.24 and 31,727.09 is: 43,785.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,212.74 : 78,958.24 = 31,727.09 : x
  2. Step 2: Convert to fraction form
    57,212.74/78,958.24 = 31,727.09/x
  3. Step 3: Cross multiply
    57,212.74x = 78,958.24 × 31,727.09
  4. Step 4: Simplify right side
    57,212.74x = 2,505,114,712.61
  5. Step 5: Solve for x
    x = 2,505,114,712.61/57,212.74
  6. Step 6: Final answer
    x = 43,785.96

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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.