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Finding the Fourth Proportional to 72,251.46, 108,396.67 and 30,117.54

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Solution

The fourth proportional to 72,251.46, 108,396.67 and 30,117.54 is: 45,184.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,251.46 : 108,396.67 = 30,117.54 : x
  2. Step 2: Convert to fraction form
    72,251.46/108,396.67 = 30,117.54/x
  3. Step 3: Cross multiply
    72,251.46x = 108,396.67 × 30,117.54
  4. Step 4: Simplify right side
    72,251.46x = 3,264,641,044.59
  5. Step 5: Solve for x
    x = 3,264,641,044.59/72,251.46
  6. Step 6: Final answer
    x = 45,184.43

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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.