Home / 72,752.22-109,129.68-22,831.20

Finding the Fourth Proportional to 72,752.22, 109,129.68 and 22,831.20

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Solution

The fourth proportional to 72,752.22, 109,129.68 and 22,831.20 is: 34,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,752.22 : 109,129.68 = 22,831.20 : x
  2. Step 2: Convert to fraction form
    72,752.22/109,129.68 = 22,831.20/x
  3. Step 3: Cross multiply
    72,752.22x = 109,129.68 × 22,831.20
  4. Step 4: Simplify right side
    72,752.22x = 2,491,561,550.02
  5. Step 5: Solve for x
    x = 2,491,561,550.02/72,752.22
  6. Step 6: Final answer
    x = 34,247.22

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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.