Home / 72,279.07-108,356.22-34,787.54

Finding the Fourth Proportional to 72,279.07, 108,356.22 and 34,787.54

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Solution

The fourth proportional to 72,279.07, 108,356.22 and 34,787.54 is: 52,151.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,279.07 : 108,356.22 = 34,787.54 : x
  2. Step 2: Convert to fraction form
    72,279.07/108,356.22 = 34,787.54/x
  3. Step 3: Cross multiply
    72,279.07x = 108,356.22 × 34,787.54
  4. Step 4: Simplify right side
    72,279.07x = 3,769,446,608.39
  5. Step 5: Solve for x
    x = 3,769,446,608.39/72,279.07
  6. Step 6: Final answer
    x = 52,151.29

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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.