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Finding the Fourth Proportional to 64,273.36, 96,414.60 and 19,894.40

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Solution

The fourth proportional to 64,273.36, 96,414.60 and 19,894.40 is: 29,843.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,273.36 : 96,414.60 = 19,894.40 : x
  2. Step 2: Convert to fraction form
    64,273.36/96,414.60 = 19,894.40/x
  3. Step 3: Cross multiply
    64,273.36x = 96,414.60 × 19,894.40
  4. Step 4: Simplify right side
    64,273.36x = 1,918,110,618.24
  5. Step 5: Solve for x
    x = 1,918,110,618.24/64,273.36
  6. Step 6: Final answer
    x = 29,843.01

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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.