Home / 73,422-110,132.64-20,831.58

Finding the Fourth Proportional to 73,422, 110,132.64 and 20,831.58

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Solution

The fourth proportional to 73,422, 110,132.64 and 20,831.58 is: 31,247.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,422 : 110,132.64 = 20,831.58 : x
  2. Step 2: Convert to fraction form
    73,422/110,132.64 = 20,831.58/x
  3. Step 3: Cross multiply
    73,422x = 110,132.64 × 20,831.58
  4. Step 4: Simplify right side
    73,422x = 2,294,236,900.77
  5. Step 5: Solve for x
    x = 2,294,236,900.77/73,422
  6. Step 6: Final answer
    x = 31,247.27

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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.