Home / 57,640.38-86,413.63-38,684.55

Finding the Fourth Proportional to 57,640.38, 86,413.63 and 38,684.55

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Solution

The fourth proportional to 57,640.38, 86,413.63 and 38,684.55 is: 57,995.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,640.38 : 86,413.63 = 38,684.55 : x
  2. Step 2: Convert to fraction form
    57,640.38/86,413.63 = 38,684.55/x
  3. Step 3: Cross multiply
    57,640.38x = 86,413.63 × 38,684.55
  4. Step 4: Simplify right side
    57,640.38x = 3,342,872,390.42
  5. Step 5: Solve for x
    x = 3,342,872,390.42/57,640.38
  6. Step 6: Final answer
    x = 57,995.32

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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.