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Finding the Fourth Proportional to 66,447.43, 91,694.09 and 37,766.34

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Solution

The fourth proportional to 66,447.43, 91,694.09 and 37,766.34 is: 52,115.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,447.43 : 91,694.09 = 37,766.34 : x
  2. Step 2: Convert to fraction form
    66,447.43/91,694.09 = 37,766.34/x
  3. Step 3: Cross multiply
    66,447.43x = 91,694.09 × 37,766.34
  4. Step 4: Simplify right side
    66,447.43x = 3,462,950,273.35
  5. Step 5: Solve for x
    x = 3,462,950,273.35/66,447.43
  6. Step 6: Final answer
    x = 52,115.64

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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.