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Finding the Fourth Proportional to 66,135.39, 91,265.04 and 37,839.26

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Solution

The fourth proportional to 66,135.39, 91,265.04 and 37,839.26 is: 52,217.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,135.39 : 91,265.04 = 37,839.26 : x
  2. Step 2: Convert to fraction form
    66,135.39/91,265.04 = 37,839.26/x
  3. Step 3: Cross multiply
    66,135.39x = 91,265.04 × 37,839.26
  4. Step 4: Simplify right side
    66,135.39x = 3,453,401,121.15
  5. Step 5: Solve for x
    x = 3,453,401,121.15/66,135.39
  6. Step 6: Final answer
    x = 52,217.14

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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.