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Finding the Fourth Proportional to 66,149.77, 91,286.97 and 35,935.21

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Solution

The fourth proportional to 66,149.77, 91,286.97 and 35,935.21 is: 49,590.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,149.77 : 91,286.97 = 35,935.21 : x
  2. Step 2: Convert to fraction form
    66,149.77/91,286.97 = 35,935.21/x
  3. Step 3: Cross multiply
    66,149.77x = 91,286.97 × 35,935.21
  4. Step 4: Simplify right side
    66,149.77x = 3,280,416,437.21
  5. Step 5: Solve for x
    x = 3,280,416,437.21/66,149.77
  6. Step 6: Final answer
    x = 49,590.75

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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.