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Finding the Fourth Proportional to 69,412.28, 104,137.86 and 27,888.44

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Solution

The fourth proportional to 69,412.28, 104,137.86 and 27,888.44 is: 41,840.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,412.28 : 104,137.86 = 27,888.44 : x
  2. Step 2: Convert to fraction form
    69,412.28/104,137.86 = 27,888.44/x
  3. Step 3: Cross multiply
    69,412.28x = 104,137.86 × 27,888.44
  4. Step 4: Simplify right side
    69,412.28x = 2,904,242,460.34
  5. Step 5: Solve for x
    x = 2,904,242,460.34/69,412.28
  6. Step 6: Final answer
    x = 41,840.47

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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.