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Finding the Fourth Proportional to 64,101.26, 96,161.02 and 19,731.72

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Solution

The fourth proportional to 64,101.26, 96,161.02 and 19,731.72 is: 29,600.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,101.26 : 96,161.02 = 19,731.72 : x
  2. Step 2: Convert to fraction form
    64,101.26/96,161.02 = 19,731.72/x
  3. Step 3: Cross multiply
    64,101.26x = 96,161.02 × 19,731.72
  4. Step 4: Simplify right side
    64,101.26x = 1,897,422,321.55
  5. Step 5: Solve for x
    x = 1,897,422,321.55/64,101.26
  6. Step 6: Final answer
    x = 29,600.39

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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.