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Finding the Fourth Proportional to 80,439.94, 110,934.39 and 50,228.02

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Solution

The fourth proportional to 80,439.94, 110,934.39 and 50,228.02 is: 69,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,439.94 : 110,934.39 = 50,228.02 : x
  2. Step 2: Convert to fraction form
    80,439.94/110,934.39 = 50,228.02/x
  3. Step 3: Cross multiply
    80,439.94x = 110,934.39 × 50,228.02
  4. Step 4: Simplify right side
    80,439.94x = 5,572,014,759.61
  5. Step 5: Solve for x
    x = 5,572,014,759.61/80,439.94
  6. Step 6: Final answer
    x = 69,269.26

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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.