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Finding the Fourth Proportional to 66,325, 91,528.50 and 36,517

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Solution

The fourth proportional to 66,325, 91,528.50 and 36,517 is: 50,393.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,325 : 91,528.50 = 36,517 : x
  2. Step 2: Convert to fraction form
    66,325/91,528.50 = 36,517/x
  3. Step 3: Cross multiply
    66,325x = 91,528.50 × 36,517
  4. Step 4: Simplify right side
    66,325x = 3,342,346,234.50
  5. Step 5: Solve for x
    x = 3,342,346,234.50/66,325
  6. Step 6: Final answer
    x = 50,393.46

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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.