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Finding the Fourth Proportional to 68,399.55, 102,704.36 and 60,972.89

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Solution

The fourth proportional to 68,399.55, 102,704.36 and 60,972.89 is: 91,552.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,399.55 : 102,704.36 = 60,972.89 : x
  2. Step 2: Convert to fraction form
    68,399.55/102,704.36 = 60,972.89/x
  3. Step 3: Cross multiply
    68,399.55x = 102,704.36 × 60,972.89
  4. Step 4: Simplify right side
    68,399.55x = 6,262,180,826.41
  5. Step 5: Solve for x
    x = 6,262,180,826.41/68,399.55
  6. Step 6: Final answer
    x = 91,552.95

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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.