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Finding the Fourth Proportional to 72,262.92, 108,394.38 and 19,672.32

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Solution

The fourth proportional to 72,262.92, 108,394.38 and 19,672.32 is: 29,508.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,262.92 : 108,394.38 = 19,672.32 : x
  2. Step 2: Convert to fraction form
    72,262.92/108,394.38 = 19,672.32/x
  3. Step 3: Cross multiply
    72,262.92x = 108,394.38 × 19,672.32
  4. Step 4: Simplify right side
    72,262.92x = 2,132,368,929.56
  5. Step 5: Solve for x
    x = 2,132,368,929.56/72,262.92
  6. Step 6: Final answer
    x = 29,508.48

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1.5x scale

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.