Home / 54,831.06-75,662.64-30,960.12

Finding the Fourth Proportional to 54,831.06, 75,662.64 and 30,960.12

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Solution

The fourth proportional to 54,831.06, 75,662.64 and 30,960.12 is: 42,722.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,831.06 : 75,662.64 = 30,960.12 : x
  2. Step 2: Convert to fraction form
    54,831.06/75,662.64 = 30,960.12/x
  3. Step 3: Cross multiply
    54,831.06x = 75,662.64 × 30,960.12
  4. Step 4: Simplify right side
    54,831.06x = 2,342,524,413.92
  5. Step 5: Solve for x
    x = 2,342,524,413.92/54,831.06
  6. Step 6: Final answer
    x = 42,722.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.