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Finding the Fourth Proportional to 68,944.36, 103,419.52 and 21,560.36

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Solution

The fourth proportional to 68,944.36, 103,419.52 and 21,560.36 is: 32,341.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,944.36 : 103,419.52 = 21,560.36 : x
  2. Step 2: Convert to fraction form
    68,944.36/103,419.52 = 21,560.36/x
  3. Step 3: Cross multiply
    68,944.36x = 103,419.52 × 21,560.36
  4. Step 4: Simplify right side
    68,944.36x = 2,229,762,082.23
  5. Step 5: Solve for x
    x = 2,229,762,082.23/68,944.36
  6. Step 6: Final answer
    x = 32,341.47

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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.