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Finding the Fourth Proportional to 80,600.94, 111,284.69 and 50,400.90

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Solution

The fourth proportional to 80,600.94, 111,284.69 and 50,400.90 is: 69,587.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,600.94 : 111,284.69 = 50,400.90 : x
  2. Step 2: Convert to fraction form
    80,600.94/111,284.69 = 50,400.90/x
  3. Step 3: Cross multiply
    80,600.94x = 111,284.69 × 50,400.90
  4. Step 4: Simplify right side
    80,600.94x = 5,608,848,280.22
  5. Step 5: Solve for x
    x = 5,608,848,280.22/80,600.94
  6. Step 6: Final answer
    x = 69,587.88

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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.