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Finding the Fourth Proportional to 69,310.90, 103,893.99 and 50,289.54

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Solution

The fourth proportional to 69,310.90, 103,893.99 and 50,289.54 is: 75,381.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,310.90 : 103,893.99 = 50,289.54 : x
  2. Step 2: Convert to fraction form
    69,310.90/103,893.99 = 50,289.54/x
  3. Step 3: Cross multiply
    69,310.90x = 103,893.99 × 50,289.54
  4. Step 4: Simplify right side
    69,310.90x = 5,224,780,965.86
  5. Step 5: Solve for x
    x = 5,224,780,965.86/69,310.90
  6. Step 6: Final answer
    x = 75,381.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.