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Finding the Fourth Proportional to 63,783.25, 95,678.93 and 19,413.28

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Solution

The fourth proportional to 63,783.25, 95,678.93 and 19,413.28 is: 29,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,783.25 : 95,678.93 = 19,413.28 : x
  2. Step 2: Convert to fraction form
    63,783.25/95,678.93 = 19,413.28/x
  3. Step 3: Cross multiply
    63,783.25x = 95,678.93 × 19,413.28
  4. Step 4: Simplify right side
    63,783.25x = 1,857,441,858.19
  5. Step 5: Solve for x
    x = 1,857,441,858.19/63,783.25
  6. Step 6: Final answer
    x = 29,121.15

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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.