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Finding the Fourth Proportional to 69,102.92, 95,358 and 38,889.44

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Solution

The fourth proportional to 69,102.92, 95,358 and 38,889.44 is: 53,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,102.92 : 95,358 = 38,889.44 : x
  2. Step 2: Convert to fraction form
    69,102.92/95,358 = 38,889.44/x
  3. Step 3: Cross multiply
    69,102.92x = 95,358 × 38,889.44
  4. Step 4: Simplify right side
    69,102.92x = 3,708,419,219.52
  5. Step 5: Solve for x
    x = 3,708,419,219.52/69,102.92
  6. Step 6: Final answer
    x = 53,665.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.