Home / 68,212.55-102,285.11-41,222.70

Finding the Fourth Proportional to 68,212.55, 102,285.11 and 41,222.70

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Solution

The fourth proportional to 68,212.55, 102,285.11 and 41,222.70 is: 61,813.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,212.55 : 102,285.11 = 41,222.70 : x
  2. Step 2: Convert to fraction form
    68,212.55/102,285.11 = 41,222.70/x
  3. Step 3: Cross multiply
    68,212.55x = 102,285.11 × 41,222.70
  4. Step 4: Simplify right side
    68,212.55x = 4,216,468,197.88
  5. Step 5: Solve for x
    x = 4,216,468,197.88/68,212.55
  6. Step 6: Final answer
    x = 61,813.68

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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.