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Finding the Fourth Proportional to 55,163.78, 82,765.72 and 27,080.88

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Solution

The fourth proportional to 55,163.78, 82,765.72 and 27,080.88 is: 40,631.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,163.78 : 82,765.72 = 27,080.88 : x
  2. Step 2: Convert to fraction form
    55,163.78/82,765.72 = 27,080.88/x
  3. Step 3: Cross multiply
    55,163.78x = 82,765.72 × 27,080.88
  4. Step 4: Simplify right side
    55,163.78x = 2,241,368,531.43
  5. Step 5: Solve for x
    x = 2,241,368,531.43/55,163.78
  6. Step 6: Final answer
    x = 40,631.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.