Home / 80,983.68-111,757.39-45,173.67

Finding the Fourth Proportional to 80,983.68, 111,757.39 and 45,173.67

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Solution

The fourth proportional to 80,983.68, 111,757.39 and 45,173.67 is: 62,339.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,983.68 : 111,757.39 = 45,173.67 : x
  2. Step 2: Convert to fraction form
    80,983.68/111,757.39 = 45,173.67/x
  3. Step 3: Cross multiply
    80,983.68x = 111,757.39 × 45,173.67
  4. Step 4: Simplify right side
    80,983.68x = 5,048,491,455.92
  5. Step 5: Solve for x
    x = 5,048,491,455.92/80,983.68
  6. Step 6: Final answer
    x = 62,339.62

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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.