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Finding the Fourth Proportional to 50,190.80, 69,293.32 and 31,353.44

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Solution

The fourth proportional to 50,190.80, 69,293.32 and 31,353.44 is: 43,286.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,190.80 : 69,293.32 = 31,353.44 : x
  2. Step 2: Convert to fraction form
    50,190.80/69,293.32 = 31,353.44/x
  3. Step 3: Cross multiply
    50,190.80x = 69,293.32 × 31,353.44
  4. Step 4: Simplify right side
    50,190.80x = 2,172,583,951.02
  5. Step 5: Solve for x
    x = 2,172,583,951.02/50,190.80
  6. Step 6: Final answer
    x = 43,286.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.