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Finding the Fourth Proportional to 68,015.56, 102,023.21 and 18,095.71

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Solution

The fourth proportional to 68,015.56, 102,023.21 and 18,095.71 is: 27,143.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,015.56 : 102,023.21 = 18,095.71 : x
  2. Step 2: Convert to fraction form
    68,015.56/102,023.21 = 18,095.71/x
  3. Step 3: Cross multiply
    68,015.56x = 102,023.21 × 18,095.71
  4. Step 4: Simplify right side
    68,015.56x = 1,846,182,421.43
  5. Step 5: Solve for x
    x = 1,846,182,421.43/68,015.56
  6. Step 6: Final answer
    x = 27,143.53

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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.