Home / 45,413.98-68,121.17-15,831.76

Finding the Fourth Proportional to 45,413.98, 68,121.17 and 15,831.76

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Solution

The fourth proportional to 45,413.98, 68,121.17 and 15,831.76 is: 23,747.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,413.98 : 68,121.17 = 15,831.76 : x
  2. Step 2: Convert to fraction form
    45,413.98/68,121.17 = 15,831.76/x
  3. Step 3: Cross multiply
    45,413.98x = 68,121.17 × 15,831.76
  4. Step 4: Simplify right side
    45,413.98x = 1,078,478,014.36
  5. Step 5: Solve for x
    x = 1,078,478,014.36/45,413.98
  6. Step 6: Final answer
    x = 23,747.71

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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.