Home / 78,181.08-117,286.04-25,593.48

Finding the Fourth Proportional to 78,181.08, 117,286.04 and 25,593.48

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Solution

The fourth proportional to 78,181.08, 117,286.04 and 25,593.48 is: 38,394.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,181.08 : 117,286.04 = 25,593.48 : x
  2. Step 2: Convert to fraction form
    78,181.08/117,286.04 = 25,593.48/x
  3. Step 3: Cross multiply
    78,181.08x = 117,286.04 × 25,593.48
  4. Step 4: Simplify right side
    78,181.08x = 3,001,757,919.02
  5. Step 5: Solve for x
    x = 3,001,757,919.02/78,181.08
  6. Step 6: Final answer
    x = 38,394.94

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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.