Home / 68,581.26-102,861.50-18,665.25

Finding the Fourth Proportional to 68,581.26, 102,861.50 and 18,665.25

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Solution

The fourth proportional to 68,581.26, 102,861.50 and 18,665.25 is: 27,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,581.26 : 102,861.50 = 18,665.25 : x
  2. Step 2: Convert to fraction form
    68,581.26/102,861.50 = 18,665.25/x
  3. Step 3: Cross multiply
    68,581.26x = 102,861.50 × 18,665.25
  4. Step 4: Simplify right side
    68,581.26x = 1,919,935,576.32
  5. Step 5: Solve for x
    x = 1,919,935,576.32/68,581.26
  6. Step 6: Final answer
    x = 27,995.05

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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.