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Finding the Fourth Proportional to 72,152.97, 108,231.29 and 34,193.33

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Solution

The fourth proportional to 72,152.97, 108,231.29 and 34,193.33 is: 51,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,152.97 : 108,231.29 = 34,193.33 : x
  2. Step 2: Convert to fraction form
    72,152.97/108,231.29 = 34,193.33/x
  3. Step 3: Cross multiply
    72,152.97x = 108,231.29 × 34,193.33
  4. Step 4: Simplify right side
    72,152.97x = 3,700,787,503.17
  5. Step 5: Solve for x
    x = 3,700,787,503.17/72,152.97
  6. Step 6: Final answer
    x = 51,290.85

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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.