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Finding the Fourth Proportional to 79,889.63, 119,834.45 and 27,299.57

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Solution

The fourth proportional to 79,889.63, 119,834.45 and 27,299.57 is: 40,949.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,889.63 : 119,834.45 = 27,299.57 : x
  2. Step 2: Convert to fraction form
    79,889.63/119,834.45 = 27,299.57/x
  3. Step 3: Cross multiply
    79,889.63x = 119,834.45 × 27,299.57
  4. Step 4: Simplify right side
    79,889.63x = 3,271,428,819.69
  5. Step 5: Solve for x
    x = 3,271,428,819.69/79,889.63
  6. Step 6: Final answer
    x = 40,949.36

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Similar ratio
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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.