Home / 66,133.11-91,264.35-35,919.03

Finding the Fourth Proportional to 66,133.11, 91,264.35 and 35,919.03

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Solution

The fourth proportional to 66,133.11, 91,264.35 and 35,919.03 is: 49,568.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,133.11 : 91,264.35 = 35,919.03 : x
  2. Step 2: Convert to fraction form
    66,133.11/91,264.35 = 35,919.03/x
  3. Step 3: Cross multiply
    66,133.11x = 91,264.35 × 35,919.03
  4. Step 4: Simplify right side
    66,133.11x = 3,278,126,469.26
  5. Step 5: Solve for x
    x = 3,278,126,469.26/66,133.11
  6. Step 6: Final answer
    x = 49,568.61

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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.