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Finding the Fourth Proportional to 66,771.50, 92,144.36 and 36,144.62

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Solution

The fourth proportional to 66,771.50, 92,144.36 and 36,144.62 is: 49,879.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,771.50 : 92,144.36 = 36,144.62 : x
  2. Step 2: Convert to fraction form
    66,771.50/92,144.36 = 36,144.62/x
  3. Step 3: Cross multiply
    66,771.50x = 92,144.36 × 36,144.62
  4. Step 4: Simplify right side
    66,771.50x = 3,330,522,506.98
  5. Step 5: Solve for x
    x = 3,330,522,506.98/66,771.50
  6. Step 6: Final answer
    x = 49,879.41

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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.