Home / 79,785.40-119,694.30-27,200.20

Finding the Fourth Proportional to 79,785.40, 119,694.30 and 27,200.20

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Solution

The fourth proportional to 79,785.40, 119,694.30 and 27,200.20 is: 40,805.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,785.40 : 119,694.30 = 27,200.20 : x
  2. Step 2: Convert to fraction form
    79,785.40/119,694.30 = 27,200.20/x
  3. Step 3: Cross multiply
    79,785.40x = 119,694.30 × 27,200.20
  4. Step 4: Simplify right side
    79,785.40x = 3,255,708,898.86
  5. Step 5: Solve for x
    x = 3,255,708,898.86/79,785.40
  6. Step 6: Final answer
    x = 40,805.82

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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.