Home / 45,413.96-68,120.35-15,831.70

Finding the Fourth Proportional to 45,413.96, 68,120.35 and 15,831.70

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Solution

The fourth proportional to 45,413.96, 68,120.35 and 15,831.70 is: 23,747.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,413.96 : 68,120.35 = 15,831.70 : x
  2. Step 2: Convert to fraction form
    45,413.96/68,120.35 = 15,831.70/x
  3. Step 3: Cross multiply
    45,413.96x = 68,120.35 × 15,831.70
  4. Step 4: Simplify right side
    45,413.96x = 1,078,460,735.21
  5. Step 5: Solve for x
    x = 1,078,460,735.21/45,413.96
  6. Step 6: Final answer
    x = 23,747.34

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1.5x scale

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.