Home / 81,524.74-122,292.32-28,221.84

Finding the Fourth Proportional to 81,524.74, 122,292.32 and 28,221.84

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Solution

The fourth proportional to 81,524.74, 122,292.32 and 28,221.84 is: 42,334.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,524.74 : 122,292.32 = 28,221.84 : x
  2. Step 2: Convert to fraction form
    81,524.74/122,292.32 = 28,221.84/x
  3. Step 3: Cross multiply
    81,524.74x = 122,292.32 × 28,221.84
  4. Step 4: Simplify right side
    81,524.74x = 3,451,314,288.27
  5. Step 5: Solve for x
    x = 3,451,314,288.27/81,524.74
  6. Step 6: Final answer
    x = 42,334.56

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1.5x scale

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.