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Finding the Fourth Proportional to 66,635.09, 91,958.90 and 36,422.44

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Solution

The fourth proportional to 66,635.09, 91,958.90 and 36,422.44 is: 50,264.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,635.09 : 91,958.90 = 36,422.44 : x
  2. Step 2: Convert to fraction form
    66,635.09/91,958.90 = 36,422.44/x
  3. Step 3: Cross multiply
    66,635.09x = 91,958.90 × 36,422.44
  4. Step 4: Simplify right side
    66,635.09x = 3,349,367,622.98
  5. Step 5: Solve for x
    x = 3,349,367,622.98/66,635.09
  6. Step 6: Final answer
    x = 50,264.32

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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.