Home / 53,831.92-74,283.22-31,172.46

Finding the Fourth Proportional to 53,831.92, 74,283.22 and 31,172.46

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Solution

The fourth proportional to 53,831.92, 74,283.22 and 31,172.46 is: 43,015.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,831.92 : 74,283.22 = 31,172.46 : x
  2. Step 2: Convert to fraction form
    53,831.92/74,283.22 = 31,172.46/x
  3. Step 3: Cross multiply
    53,831.92x = 74,283.22 × 31,172.46
  4. Step 4: Simplify right side
    53,831.92x = 2,315,590,704.12
  5. Step 5: Solve for x
    x = 2,315,590,704.12/53,831.92
  6. Step 6: Final answer
    x = 43,015.20

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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.