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Finding the Fourth Proportional to 69,444, 95,845.68 and 39,636

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Solution

The fourth proportional to 69,444, 95,845.68 and 39,636 is: 54,705.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,444 : 95,845.68 = 39,636 : x
  2. Step 2: Convert to fraction form
    69,444/95,845.68 = 39,636/x
  3. Step 3: Cross multiply
    69,444x = 95,845.68 × 39,636
  4. Step 4: Simplify right side
    69,444x = 3,798,939,372.48
  5. Step 5: Solve for x
    x = 3,798,939,372.48/69,444
  6. Step 6: Final answer
    x = 54,705.08

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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.