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Finding the Fourth Proportional to 80,162.70, 110,603.76 and 47,884.11

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Solution

The fourth proportional to 80,162.70, 110,603.76 and 47,884.11 is: 66,067.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,162.70 : 110,603.76 = 47,884.11 : x
  2. Step 2: Convert to fraction form
    80,162.70/110,603.76 = 47,884.11/x
  3. Step 3: Cross multiply
    80,162.70x = 110,603.76 × 47,884.11
  4. Step 4: Simplify right side
    80,162.70x = 5,296,162,375.05
  5. Step 5: Solve for x
    x = 5,296,162,375.05/80,162.70
  6. Step 6: Final answer
    x = 66,067.67

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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.