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Finding the Fourth Proportional to 68,676.93, 102,830.84 and 43,581.11

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Solution

The fourth proportional to 68,676.93, 102,830.84 and 43,581.11 is: 65,254.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,676.93 : 102,830.84 = 43,581.11 : x
  2. Step 2: Convert to fraction form
    68,676.93/102,830.84 = 43,581.11/x
  3. Step 3: Cross multiply
    68,676.93x = 102,830.84 × 43,581.11
  4. Step 4: Simplify right side
    68,676.93x = 4,481,481,802.99
  5. Step 5: Solve for x
    x = 4,481,481,802.99/68,676.93
  6. Step 6: Final answer
    x = 65,254.54

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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.