Home / 66,122.96-91,250.43-35,908.61

Finding the Fourth Proportional to 66,122.96, 91,250.43 and 35,908.61

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Solution

The fourth proportional to 66,122.96, 91,250.43 and 35,908.61 is: 49,554.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,122.96 : 91,250.43 = 35,908.61 : x
  2. Step 2: Convert to fraction form
    66,122.96/91,250.43 = 35,908.61/x
  3. Step 3: Cross multiply
    66,122.96x = 91,250.43 × 35,908.61
  4. Step 4: Simplify right side
    66,122.96x = 3,276,676,103.20
  5. Step 5: Solve for x
    x = 3,276,676,103.20/66,122.96
  6. Step 6: Final answer
    x = 49,554.29

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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.