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Finding the Fourth Proportional to 66,150.48, 91,286.31 and 37,469.64

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Solution

The fourth proportional to 66,150.48, 91,286.31 and 37,469.64 is: 51,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,150.48 : 91,286.31 = 37,469.64 : x
  2. Step 2: Convert to fraction form
    66,150.48/91,286.31 = 37,469.64/x
  3. Step 3: Cross multiply
    66,150.48x = 91,286.31 × 37,469.64
  4. Step 4: Simplify right side
    66,150.48x = 3,420,465,172.63
  5. Step 5: Solve for x
    x = 3,420,465,172.63/66,150.48
  6. Step 6: Final answer
    x = 51,707.34

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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.