Home / 57,217.33-78,959.53-31,723.70

Finding the Fourth Proportional to 57,217.33, 78,959.53 and 31,723.70

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Solution

The fourth proportional to 57,217.33, 78,959.53 and 31,723.70 is: 43,778.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,217.33 : 78,959.53 = 31,723.70 : x
  2. Step 2: Convert to fraction form
    57,217.33/78,959.53 = 31,723.70/x
  3. Step 3: Cross multiply
    57,217.33x = 78,959.53 × 31,723.70
  4. Step 4: Simplify right side
    57,217.33x = 2,504,888,441.86
  5. Step 5: Solve for x
    x = 2,504,888,441.86/57,217.33
  6. Step 6: Final answer
    x = 43,778.50

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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.