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Finding the Fourth Proportional to 65,100.24, 89,845.02 and 39,608.44

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Solution

The fourth proportional to 65,100.24, 89,845.02 and 39,608.44 is: 54,663.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,100.24 : 89,845.02 = 39,608.44 : x
  2. Step 2: Convert to fraction form
    65,100.24/89,845.02 = 39,608.44/x
  3. Step 3: Cross multiply
    65,100.24x = 89,845.02 × 39,608.44
  4. Step 4: Simplify right side
    65,100.24x = 3,558,621,083.97
  5. Step 5: Solve for x
    x = 3,558,621,083.97/65,100.24
  6. Step 6: Final answer
    x = 54,663.72

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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.