Home / 76,939.62-106,224.67-49,729.95

Finding the Fourth Proportional to 76,939.62, 106,224.67 and 49,729.95

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Solution

The fourth proportional to 76,939.62, 106,224.67 and 49,729.95 is: 68,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,939.62 : 106,224.67 = 49,729.95 : x
  2. Step 2: Convert to fraction form
    76,939.62/106,224.67 = 49,729.95/x
  3. Step 3: Cross multiply
    76,939.62x = 106,224.67 × 49,729.95
  4. Step 4: Simplify right side
    76,939.62x = 5,282,546,996.74
  5. Step 5: Solve for x
    x = 5,282,546,996.74/76,939.62
  6. Step 6: Final answer
    x = 68,658.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.