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Finding the Fourth Proportional to 53,370, 73,650.87 and 29,171.48

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Solution

The fourth proportional to 53,370, 73,650.87 and 29,171.48 is: 40,256.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,370 : 73,650.87 = 29,171.48 : x
  2. Step 2: Convert to fraction form
    53,370/73,650.87 = 29,171.48/x
  3. Step 3: Cross multiply
    53,370x = 73,650.87 × 29,171.48
  4. Step 4: Simplify right side
    53,370x = 2,148,504,512.93
  5. Step 5: Solve for x
    x = 2,148,504,512.93/53,370
  6. Step 6: Final answer
    x = 40,256.78

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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.