Home / 68,564.17-102,786.78-30,584.89

Finding the Fourth Proportional to 68,564.17, 102,786.78 and 30,584.89

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Solution

The fourth proportional to 68,564.17, 102,786.78 and 30,584.89 is: 45,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,564.17 : 102,786.78 = 30,584.89 : x
  2. Step 2: Convert to fraction form
    68,564.17/102,786.78 = 30,584.89/x
  3. Step 3: Cross multiply
    68,564.17x = 102,786.78 × 30,584.89
  4. Step 4: Simplify right side
    68,564.17x = 3,143,721,845.82
  5. Step 5: Solve for x
    x = 3,143,721,845.82/68,564.17
  6. Step 6: Final answer
    x = 45,850.80

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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.