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Finding the Fourth Proportional to 69,865.67, 96,414.33 and 39,234.50

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Solution

The fourth proportional to 69,865.67, 96,414.33 and 39,234.50 is: 54,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,865.67 : 96,414.33 = 39,234.50 : x
  2. Step 2: Convert to fraction form
    69,865.67/96,414.33 = 39,234.50/x
  3. Step 3: Cross multiply
    69,865.67x = 96,414.33 × 39,234.50
  4. Step 4: Simplify right side
    69,865.67x = 3,782,768,030.39
  5. Step 5: Solve for x
    x = 3,782,768,030.39/69,865.67
  6. Step 6: Final answer
    x = 54,143.45

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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.