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Finding the Fourth Proportional to 64,348.80, 96,548.52 and 19,979.04

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Solution

The fourth proportional to 64,348.80, 96,548.52 and 19,979.04 is: 29,976.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,348.80 : 96,548.52 = 19,979.04 : x
  2. Step 2: Convert to fraction form
    64,348.80/96,548.52 = 19,979.04/x
  3. Step 3: Cross multiply
    64,348.80x = 96,548.52 × 19,979.04
  4. Step 4: Simplify right side
    64,348.80x = 1,928,946,743.02
  5. Step 5: Solve for x
    x = 1,928,946,743.02/64,348.80
  6. Step 6: Final answer
    x = 29,976.42

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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.