Home / 81,868.35-122,759.13-50,292.86

Finding the Fourth Proportional to 81,868.35, 122,759.13 and 50,292.86

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Solution

The fourth proportional to 81,868.35, 122,759.13 and 50,292.86 is: 75,412.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,868.35 : 122,759.13 = 50,292.86 : x
  2. Step 2: Convert to fraction form
    81,868.35/122,759.13 = 50,292.86/x
  3. Step 3: Cross multiply
    81,868.35x = 122,759.13 × 50,292.86
  4. Step 4: Simplify right side
    81,868.35x = 6,173,907,738.81
  5. Step 5: Solve for x
    x = 6,173,907,738.81/81,868.35
  6. Step 6: Final answer
    x = 75,412.63

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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.