Home / 68,755.42-103,133.22-18,835.96

Finding the Fourth Proportional to 68,755.42, 103,133.22 and 18,835.96

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Solution

The fourth proportional to 68,755.42, 103,133.22 and 18,835.96 is: 28,253.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,755.42 : 103,133.22 = 18,835.96 : x
  2. Step 2: Convert to fraction form
    68,755.42/103,133.22 = 18,835.96/x
  3. Step 3: Cross multiply
    68,755.42x = 103,133.22 × 18,835.96
  4. Step 4: Simplify right side
    68,755.42x = 1,942,612,690.93
  5. Step 5: Solve for x
    x = 1,942,612,690.93/68,755.42
  6. Step 6: Final answer
    x = 28,253.96

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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.