Home / 54,942.20-82,413.30-13,389.20

Finding the Fourth Proportional to 54,942.20, 82,413.30 and 13,389.20

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Solution

The fourth proportional to 54,942.20, 82,413.30 and 13,389.20 is: 20,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,942.20 : 82,413.30 = 13,389.20 : x
  2. Step 2: Convert to fraction form
    54,942.20/82,413.30 = 13,389.20/x
  3. Step 3: Cross multiply
    54,942.20x = 82,413.30 × 13,389.20
  4. Step 4: Simplify right side
    54,942.20x = 1,103,448,156.36
  5. Step 5: Solve for x
    x = 1,103,448,156.36/54,942.20
  6. Step 6: Final answer
    x = 20,083.80

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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.