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Finding the Fourth Proportional to 79,981.92, 119,841.48 and 27,362.70

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Solution

The fourth proportional to 79,981.92, 119,841.48 and 27,362.70 is: 40,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,981.92 : 119,841.48 = 27,362.70 : x
  2. Step 2: Convert to fraction form
    79,981.92/119,841.48 = 27,362.70/x
  3. Step 3: Cross multiply
    79,981.92x = 119,841.48 × 27,362.70
  4. Step 4: Simplify right side
    79,981.92x = 3,279,186,464.80
  5. Step 5: Solve for x
    x = 3,279,186,464.80/79,981.92
  6. Step 6: Final answer
    x = 40,999.10

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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.