Home / 66,163.32-91,305-35,948.43

Finding the Fourth Proportional to 66,163.32, 91,305 and 35,948.43

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Solution

The fourth proportional to 66,163.32, 91,305 and 35,948.43 is: 49,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,163.32 : 91,305 = 35,948.43 : x
  2. Step 2: Convert to fraction form
    66,163.32/91,305 = 35,948.43/x
  3. Step 3: Cross multiply
    66,163.32x = 91,305 × 35,948.43
  4. Step 4: Simplify right side
    66,163.32x = 3,282,271,401.15
  5. Step 5: Solve for x
    x = 3,282,271,401.15/66,163.32
  6. Step 6: Final answer
    x = 49,608.63

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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.