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Finding the Fourth Proportional to 66,185.50, 91,336.87 and 35,971.42

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Solution

The fourth proportional to 66,185.50, 91,336.87 and 35,971.42 is: 49,641.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,185.50 : 91,336.87 = 35,971.42 : x
  2. Step 2: Convert to fraction form
    66,185.50/91,336.87 = 35,971.42/x
  3. Step 3: Cross multiply
    66,185.50x = 91,336.87 × 35,971.42
  4. Step 4: Simplify right side
    66,185.50x = 3,285,517,185.56
  5. Step 5: Solve for x
    x = 3,285,517,185.56/66,185.50
  6. Step 6: Final answer
    x = 49,641.04

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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.