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Finding the Fourth Proportional to 69,404, 95,775.75 and 38,777.32

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Solution

The fourth proportional to 69,404, 95,775.75 and 38,777.32 is: 53,511.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,404 : 95,775.75 = 38,777.32 : x
  2. Step 2: Convert to fraction form
    69,404/95,775.75 = 38,777.32/x
  3. Step 3: Cross multiply
    69,404x = 95,775.75 × 38,777.32
  4. Step 4: Simplify right side
    69,404x = 3,713,926,905.99
  5. Step 5: Solve for x
    x = 3,713,926,905.99/69,404
  6. Step 6: Final answer
    x = 53,511.71

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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.