Home / 45,413.88-68,119.20-15,831.60

Finding the Fourth Proportional to 45,413.88, 68,119.20 and 15,831.60

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Solution

The fourth proportional to 45,413.88, 68,119.20 and 15,831.60 is: 23,746.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,413.88 : 68,119.20 = 15,831.60 : x
  2. Step 2: Convert to fraction form
    45,413.88/68,119.20 = 15,831.60/x
  3. Step 3: Cross multiply
    45,413.88x = 68,119.20 × 15,831.60
  4. Step 4: Simplify right side
    45,413.88x = 1,078,435,926.72
  5. Step 5: Solve for x
    x = 1,078,435,926.72/45,413.88
  6. Step 6: Final answer
    x = 23,746.84

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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.