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Finding the Fourth Proportional to 66,394.96, 91,623.36 and 36,181.08

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Solution

The fourth proportional to 66,394.96, 91,623.36 and 36,181.08 is: 49,928.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,394.96 : 91,623.36 = 36,181.08 : x
  2. Step 2: Convert to fraction form
    66,394.96/91,623.36 = 36,181.08/x
  3. Step 3: Cross multiply
    66,394.96x = 91,623.36 × 36,181.08
  4. Step 4: Simplify right side
    66,394.96x = 3,315,032,118.03
  5. Step 5: Solve for x
    x = 3,315,032,118.03/66,394.96
  6. Step 6: Final answer
    x = 49,928.97

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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.