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Finding the Fourth Proportional to 66,719.45, 92,072.78 and 36,504.89

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Solution

The fourth proportional to 66,719.45, 92,072.78 and 36,504.89 is: 50,376.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,719.45 : 92,072.78 = 36,504.89 : x
  2. Step 2: Convert to fraction form
    66,719.45/92,072.78 = 36,504.89/x
  3. Step 3: Cross multiply
    66,719.45x = 92,072.78 × 36,504.89
  4. Step 4: Simplify right side
    66,719.45x = 3,361,106,571.98
  5. Step 5: Solve for x
    x = 3,361,106,571.98/66,719.45
  6. Step 6: Final answer
    x = 50,376.72

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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.