Home / 66,917.72-100,382.04-33,620.60

Finding the Fourth Proportional to 66,917.72, 100,382.04 and 33,620.60

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Solution

The fourth proportional to 66,917.72, 100,382.04 and 33,620.60 is: 50,433.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,917.72 : 100,382.04 = 33,620.60 : x
  2. Step 2: Convert to fraction form
    66,917.72/100,382.04 = 33,620.60/x
  3. Step 3: Cross multiply
    66,917.72x = 100,382.04 × 33,620.60
  4. Step 4: Simplify right side
    66,917.72x = 3,374,904,414.02
  5. Step 5: Solve for x
    x = 3,374,904,414.02/66,917.72
  6. Step 6: Final answer
    x = 50,433.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.