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Finding the Fourth Proportional to 68,322.56, 102,439.68 and 26,773.76

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Solution

The fourth proportional to 68,322.56, 102,439.68 and 26,773.76 is: 40,143.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,322.56 : 102,439.68 = 26,773.76 : x
  2. Step 2: Convert to fraction form
    68,322.56/102,439.68 = 26,773.76/x
  3. Step 3: Cross multiply
    68,322.56x = 102,439.68 × 26,773.76
  4. Step 4: Simplify right side
    68,322.56x = 2,742,695,406.80
  5. Step 5: Solve for x
    x = 2,742,695,406.80/68,322.56
  6. Step 6: Final answer
    x = 40,143.33

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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.