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Finding the Fourth Proportional to 63,039.38, 86,992.07 and 34,358.45

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Solution

The fourth proportional to 63,039.38, 86,992.07 and 34,358.45 is: 47,413.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,039.38 : 86,992.07 = 34,358.45 : x
  2. Step 2: Convert to fraction form
    63,039.38/86,992.07 = 34,358.45/x
  3. Step 3: Cross multiply
    63,039.38x = 86,992.07 × 34,358.45
  4. Step 4: Simplify right side
    63,039.38x = 2,988,912,080.74
  5. Step 5: Solve for x
    x = 2,988,912,080.74/63,039.38
  6. Step 6: Final answer
    x = 47,413.42

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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.