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Finding the Fourth Proportional to 72,294.45, 108,283.74 and 30,046.44

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Solution

The fourth proportional to 72,294.45, 108,283.74 and 30,046.44 is: 45,004.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,294.45 : 108,283.74 = 30,046.44 : x
  2. Step 2: Convert to fraction form
    72,294.45/108,283.74 = 30,046.44/x
  3. Step 3: Cross multiply
    72,294.45x = 108,283.74 × 30,046.44
  4. Step 4: Simplify right side
    72,294.45x = 3,253,540,896.89
  5. Step 5: Solve for x
    x = 3,253,540,896.89/72,294.45
  6. Step 6: Final answer
    x = 45,004.02

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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.