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Finding the Fourth Proportional to 66,523.01, 91,801.05 and 36,308.09

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Solution

The fourth proportional to 66,523.01, 91,801.05 and 36,308.09 is: 50,104.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,523.01 : 91,801.05 = 36,308.09 : x
  2. Step 2: Convert to fraction form
    66,523.01/91,801.05 = 36,308.09/x
  3. Step 3: Cross multiply
    66,523.01x = 91,801.05 × 36,308.09
  4. Step 4: Simplify right side
    66,523.01x = 3,333,120,785.49
  5. Step 5: Solve for x
    x = 3,333,120,785.49/66,523.01
  6. Step 6: Final answer
    x = 50,104.78

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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.