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Finding the Fourth Proportional to 80,002.97, 110,211.06 and 68,481.12

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Solution

The fourth proportional to 80,002.97, 110,211.06 and 68,481.12 is: 94,338.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,002.97 : 110,211.06 = 68,481.12 : x
  2. Step 2: Convert to fraction form
    80,002.97/110,211.06 = 68,481.12/x
  3. Step 3: Cross multiply
    80,002.97x = 110,211.06 × 68,481.12
  4. Step 4: Simplify right side
    80,002.97x = 7,547,376,607.50
  5. Step 5: Solve for x
    x = 7,547,376,607.50/80,002.97
  6. Step 6: Final answer
    x = 94,338.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.