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Finding the Fourth Proportional to 68,413.56, 94,409.79 and 38,199.39

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Solution

The fourth proportional to 68,413.56, 94,409.79 and 38,199.39 is: 52,714.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,413.56 : 94,409.79 = 38,199.39 : x
  2. Step 2: Convert to fraction form
    68,413.56/94,409.79 = 38,199.39/x
  3. Step 3: Cross multiply
    68,413.56x = 94,409.79 × 38,199.39
  4. Step 4: Simplify right side
    68,413.56x = 3,606,396,388.03
  5. Step 5: Solve for x
    x = 3,606,396,388.03/68,413.56
  6. Step 6: Final answer
    x = 52,714.64

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1.5x scale

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.