Home / 67,266.79-100,768.83-40,906.15

Finding the Fourth Proportional to 67,266.79, 100,768.83 and 40,906.15

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Solution

The fourth proportional to 67,266.79, 100,768.83 and 40,906.15 is: 61,279.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,266.79 : 100,768.83 = 40,906.15 : x
  2. Step 2: Convert to fraction form
    67,266.79/100,768.83 = 40,906.15/x
  3. Step 3: Cross multiply
    67,266.79x = 100,768.83 × 40,906.15
  4. Step 4: Simplify right side
    67,266.79x = 4,122,064,469.98
  5. Step 5: Solve for x
    x = 4,122,064,469.98/67,266.79
  6. Step 6: Final answer
    x = 61,279.34

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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.