Home / 68,403.78-94,436.46-52,143.42

Finding the Fourth Proportional to 68,403.78, 94,436.46 and 52,143.42

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Solution

The fourth proportional to 68,403.78, 94,436.46 and 52,143.42 is: 71,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,403.78 : 94,436.46 = 52,143.42 : x
  2. Step 2: Convert to fraction form
    68,403.78/94,436.46 = 52,143.42/x
  3. Step 3: Cross multiply
    68,403.78x = 94,436.46 × 52,143.42
  4. Step 4: Simplify right side
    68,403.78x = 4,924,239,997.09
  5. Step 5: Solve for x
    x = 4,924,239,997.09/68,403.78
  6. Step 6: Final answer
    x = 71,987.83

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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.