Home / 89,733.20-123,831.24-49,447.28

Finding the Fourth Proportional to 89,733.20, 123,831.24 and 49,447.28

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Solution

The fourth proportional to 89,733.20, 123,831.24 and 49,447.28 is: 68,236.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,733.20 : 123,831.24 = 49,447.28 : x
  2. Step 2: Convert to fraction form
    89,733.20/123,831.24 = 49,447.28/x
  3. Step 3: Cross multiply
    89,733.20x = 123,831.24 × 49,447.28
  4. Step 4: Simplify right side
    89,733.20x = 6,123,117,997.03
  5. Step 5: Solve for x
    x = 6,123,117,997.03/89,733.20
  6. Step 6: Final answer
    x = 68,236.93

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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.