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Finding the Fourth Proportional to 69,871.11, 104,484.75 and 51,893.28

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Solution

The fourth proportional to 69,871.11, 104,484.75 and 51,893.28 is: 77,600.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,871.11 : 104,484.75 = 51,893.28 : x
  2. Step 2: Convert to fraction form
    69,871.11/104,484.75 = 51,893.28/x
  3. Step 3: Cross multiply
    69,871.11x = 104,484.75 × 51,893.28
  4. Step 4: Simplify right side
    69,871.11x = 5,422,056,387.48
  5. Step 5: Solve for x
    x = 5,422,056,387.48/69,871.11
  6. Step 6: Final answer
    x = 77,600.83

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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.