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Finding the Fourth Proportional to 66,087.01, 91,198.62 and 35,872.39

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Solution

The fourth proportional to 66,087.01, 91,198.62 and 35,872.39 is: 49,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,087.01 : 91,198.62 = 35,872.39 : x
  2. Step 2: Convert to fraction form
    66,087.01/91,198.62 = 35,872.39/x
  3. Step 3: Cross multiply
    66,087.01x = 91,198.62 × 35,872.39
  4. Step 4: Simplify right side
    66,087.01x = 3,271,511,828.75
  5. Step 5: Solve for x
    x = 3,271,511,828.75/66,087.01
  6. Step 6: Final answer
    x = 49,503.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.