Home / 79,405.20-109,578.68-43,595.76

Finding the Fourth Proportional to 79,405.20, 109,578.68 and 43,595.76

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Solution

The fourth proportional to 79,405.20, 109,578.68 and 43,595.76 is: 60,161.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,405.20 : 109,578.68 = 43,595.76 : x
  2. Step 2: Convert to fraction form
    79,405.20/109,578.68 = 43,595.76/x
  3. Step 3: Cross multiply
    79,405.20x = 109,578.68 × 43,595.76
  4. Step 4: Simplify right side
    79,405.20x = 4,777,165,834.40
  5. Step 5: Solve for x
    x = 4,777,165,834.40/79,405.20
  6. Step 6: Final answer
    x = 60,161.88

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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.