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Finding the Fourth Proportional to 80,242.37, 110,788.26 and 50,039.90

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Solution

The fourth proportional to 80,242.37, 110,788.26 and 50,039.90 is: 69,088.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,242.37 : 110,788.26 = 50,039.90 : x
  2. Step 2: Convert to fraction form
    80,242.37/110,788.26 = 50,039.90/x
  3. Step 3: Cross multiply
    80,242.37x = 110,788.26 × 50,039.90
  4. Step 4: Simplify right side
    80,242.37x = 5,543,833,451.57
  5. Step 5: Solve for x
    x = 5,543,833,451.57/80,242.37
  6. Step 6: Final answer
    x = 69,088.61

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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.