Home / 55,413.45-83,082.19-19,874

Finding the Fourth Proportional to 55,413.45, 83,082.19 and 19,874

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Solution

The fourth proportional to 55,413.45, 83,082.19 and 19,874 is: 29,797.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,413.45 : 83,082.19 = 19,874 : x
  2. Step 2: Convert to fraction form
    55,413.45/83,082.19 = 19,874/x
  3. Step 3: Cross multiply
    55,413.45x = 83,082.19 × 19,874
  4. Step 4: Simplify right side
    55,413.45x = 1,651,175,444.06
  5. Step 5: Solve for x
    x = 1,651,175,444.06/55,413.45
  6. Step 6: Final answer
    x = 29,797.38

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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.