Home / 69,129.73-103,749.97-31,707.44

Finding the Fourth Proportional to 69,129.73, 103,749.97 and 31,707.44

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Solution

The fourth proportional to 69,129.73, 103,749.97 and 31,707.44 is: 47,586.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,129.73 : 103,749.97 = 31,707.44 : x
  2. Step 2: Convert to fraction form
    69,129.73/103,749.97 = 31,707.44/x
  3. Step 3: Cross multiply
    69,129.73x = 103,749.97 × 31,707.44
  4. Step 4: Simplify right side
    69,129.73x = 3,289,645,948.78
  5. Step 5: Solve for x
    x = 3,289,645,948.78/69,129.73
  6. Step 6: Final answer
    x = 47,586.56

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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.