Home / 87,558.24-120,831.84-49,836

Finding the Fourth Proportional to 87,558.24, 120,831.84 and 49,836

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Solution

The fourth proportional to 87,558.24, 120,831.84 and 49,836 is: 68,774.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,558.24 : 120,831.84 = 49,836 : x
  2. Step 2: Convert to fraction form
    87,558.24/120,831.84 = 49,836/x
  3. Step 3: Cross multiply
    87,558.24x = 120,831.84 × 49,836
  4. Step 4: Simplify right side
    87,558.24x = 6,021,775,578.24
  5. Step 5: Solve for x
    x = 6,021,775,578.24/87,558.24
  6. Step 6: Final answer
    x = 68,774.52

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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.