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Finding the Fourth Proportional to 66,911.68, 100,383.72 and 33,548.86

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Solution

The fourth proportional to 66,911.68, 100,383.72 and 33,548.86 is: 50,331.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,911.68 : 100,383.72 = 33,548.86 : x
  2. Step 2: Convert to fraction form
    66,911.68/100,383.72 = 33,548.86/x
  3. Step 3: Cross multiply
    66,911.68x = 100,383.72 × 33,548.86
  4. Step 4: Simplify right side
    66,911.68x = 3,367,759,368.56
  5. Step 5: Solve for x
    x = 3,367,759,368.56/66,911.68
  6. Step 6: Final answer
    x = 50,331.41

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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.