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Finding the Fourth Proportional to 66,657.33, 91,986.07 and 36,441.94

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Solution

The fourth proportional to 66,657.33, 91,986.07 and 36,441.94 is: 50,289.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,657.33 : 91,986.07 = 36,441.94 : x
  2. Step 2: Convert to fraction form
    66,657.33/91,986.07 = 36,441.94/x
  3. Step 3: Cross multiply
    66,657.33x = 91,986.07 × 36,441.94
  4. Step 4: Simplify right side
    66,657.33x = 3,352,150,843.78
  5. Step 5: Solve for x
    x = 3,352,150,843.78/66,657.33
  6. Step 6: Final answer
    x = 50,289.31

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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.