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Finding the Fourth Proportional to 64,201.09, 96,264.60 and 19,815.97

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Solution

The fourth proportional to 64,201.09, 96,264.60 and 19,815.97 is: 29,712.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,201.09 : 96,264.60 = 19,815.97 : x
  2. Step 2: Convert to fraction form
    64,201.09/96,264.60 = 19,815.97/x
  3. Step 3: Cross multiply
    64,201.09x = 96,264.60 × 19,815.97
  4. Step 4: Simplify right side
    64,201.09x = 1,907,576,425.66
  5. Step 5: Solve for x
    x = 1,907,576,425.66/64,201.09
  6. Step 6: Final answer
    x = 29,712.52

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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.