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Finding the Fourth Proportional to 68,546.45, 102,850.36 and 43,580.03

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Solution

The fourth proportional to 68,546.45, 102,850.36 and 43,580.03 is: 65,389.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,546.45 : 102,850.36 = 43,580.03 : x
  2. Step 2: Convert to fraction form
    68,546.45/102,850.36 = 43,580.03/x
  3. Step 3: Cross multiply
    68,546.45x = 102,850.36 × 43,580.03
  4. Step 4: Simplify right side
    68,546.45x = 4,482,221,151.11
  5. Step 5: Solve for x
    x = 4,482,221,151.11/68,546.45
  6. Step 6: Final answer
    x = 65,389.54

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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.