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Finding the Fourth Proportional to 80,243.37, 110,789.64 and 50,040.90

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Solution

The fourth proportional to 80,243.37, 110,789.64 and 50,040.90 is: 69,089.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,243.37 : 110,789.64 = 50,040.90 : x
  2. Step 2: Convert to fraction form
    80,243.37/110,789.64 = 50,040.90/x
  3. Step 3: Cross multiply
    80,243.37x = 110,789.64 × 50,040.90
  4. Step 4: Simplify right side
    80,243.37x = 5,544,013,296.28
  5. Step 5: Solve for x
    x = 5,544,013,296.28/80,243.37
  6. Step 6: Final answer
    x = 69,089.99

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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.