Home / 68,438.46-102,839.94-36,872.76

Finding the Fourth Proportional to 68,438.46, 102,839.94 and 36,872.76

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Solution

The fourth proportional to 68,438.46, 102,839.94 and 36,872.76 is: 55,407.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,438.46 : 102,839.94 = 36,872.76 : x
  2. Step 2: Convert to fraction form
    68,438.46/102,839.94 = 36,872.76/x
  3. Step 3: Cross multiply
    68,438.46x = 102,839.94 × 36,872.76
  4. Step 4: Simplify right side
    68,438.46x = 3,791,992,426.03
  5. Step 5: Solve for x
    x = 3,791,992,426.03/68,438.46
  6. Step 6: Final answer
    x = 55,407.33

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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.