Home / 68,266.08-102,387.60-18,351.72

Finding the Fourth Proportional to 68,266.08, 102,387.60 and 18,351.72

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Solution

The fourth proportional to 68,266.08, 102,387.60 and 18,351.72 is: 27,524.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,266.08 : 102,387.60 = 18,351.72 : x
  2. Step 2: Convert to fraction form
    68,266.08/102,387.60 = 18,351.72/x
  3. Step 3: Cross multiply
    68,266.08x = 102,387.60 × 18,351.72
  4. Step 4: Simplify right side
    68,266.08x = 1,878,988,566.67
  5. Step 5: Solve for x
    x = 1,878,988,566.67/68,266.08
  6. Step 6: Final answer
    x = 27,524.48

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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.