Home / 66,078.97-91,189.67-35,864.55

Finding the Fourth Proportional to 66,078.97, 91,189.67 and 35,864.55

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Solution

The fourth proportional to 66,078.97, 91,189.67 and 35,864.55 is: 49,493.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,078.97 : 91,189.67 = 35,864.55 : x
  2. Step 2: Convert to fraction form
    66,078.97/91,189.67 = 35,864.55/x
  3. Step 3: Cross multiply
    66,078.97x = 91,189.67 × 35,864.55
  4. Step 4: Simplify right side
    66,078.97x = 3,270,476,299.88
  5. Step 5: Solve for x
    x = 3,270,476,299.88/66,078.97
  6. Step 6: Final answer
    x = 49,493.45

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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.