Home / 57,869.34-86,760.33-20,413.02

Finding the Fourth Proportional to 57,869.34, 86,760.33 and 20,413.02

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Solution

The fourth proportional to 57,869.34, 86,760.33 and 20,413.02 is: 30,604.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,869.34 : 86,760.33 = 20,413.02 : x
  2. Step 2: Convert to fraction form
    57,869.34/86,760.33 = 20,413.02/x
  3. Step 3: Cross multiply
    57,869.34x = 86,760.33 × 20,413.02
  4. Step 4: Simplify right side
    57,869.34x = 1,771,040,351.50
  5. Step 5: Solve for x
    x = 1,771,040,351.50/57,869.34
  6. Step 6: Final answer
    x = 30,604.12

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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.