Home / 54,286.41-74,917.40-30,413.28

Finding the Fourth Proportional to 54,286.41, 74,917.40 and 30,413.28

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Solution

The fourth proportional to 54,286.41, 74,917.40 and 30,413.28 is: 41,971.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,286.41 : 74,917.40 = 30,413.28 : x
  2. Step 2: Convert to fraction form
    54,286.41/74,917.40 = 30,413.28/x
  3. Step 3: Cross multiply
    54,286.41x = 74,917.40 × 30,413.28
  4. Step 4: Simplify right side
    54,286.41x = 2,278,483,711.01
  5. Step 5: Solve for x
    x = 2,278,483,711.01/54,286.41
  6. Step 6: Final answer
    x = 41,971.53

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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.