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Finding the Fourth Proportional to 63,902.76, 88,200.83 and 39,721.96

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Solution

The fourth proportional to 63,902.76, 88,200.83 and 39,721.96 is: 54,825.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,902.76 : 88,200.83 = 39,721.96 : x
  2. Step 2: Convert to fraction form
    63,902.76/88,200.83 = 39,721.96/x
  3. Step 3: Cross multiply
    63,902.76x = 88,200.83 × 39,721.96
  4. Step 4: Simplify right side
    63,902.76x = 3,503,509,841.23
  5. Step 5: Solve for x
    x = 3,503,509,841.23/63,902.76
  6. Step 6: Final answer
    x = 54,825.64

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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.