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Finding the Fourth Proportional to 63,668.44, 87,893.61 and 39,802.81

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Solution

The fourth proportional to 63,668.44, 87,893.61 and 39,802.81 is: 54,947.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,668.44 : 87,893.61 = 39,802.81 : x
  2. Step 2: Convert to fraction form
    63,668.44/87,893.61 = 39,802.81/x
  3. Step 3: Cross multiply
    63,668.44x = 87,893.61 × 39,802.81
  4. Step 4: Simplify right side
    63,668.44x = 3,498,412,659.04
  5. Step 5: Solve for x
    x = 3,498,412,659.04/63,668.44
  6. Step 6: Final answer
    x = 54,947.36

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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.