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Finding the Fourth Proportional to 80,251.63, 110,674.15 and 68,917.57

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Solution

The fourth proportional to 80,251.63, 110,674.15 and 68,917.57 is: 95,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,251.63 : 110,674.15 = 68,917.57 : x
  2. Step 2: Convert to fraction form
    80,251.63/110,674.15 = 68,917.57/x
  3. Step 3: Cross multiply
    80,251.63x = 110,674.15 × 68,917.57
  4. Step 4: Simplify right side
    80,251.63x = 7,627,393,479.82
  5. Step 5: Solve for x
    x = 7,627,393,479.82/80,251.63
  6. Step 6: Final answer
    x = 95,043.47

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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.