Home / 82,215.83-113,380.84-54,571.60

Finding the Fourth Proportional to 82,215.83, 113,380.84 and 54,571.60

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Solution

The fourth proportional to 82,215.83, 113,380.84 and 54,571.60 is: 75,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,215.83 : 113,380.84 = 54,571.60 : x
  2. Step 2: Convert to fraction form
    82,215.83/113,380.84 = 54,571.60/x
  3. Step 3: Cross multiply
    82,215.83x = 113,380.84 × 54,571.60
  4. Step 4: Simplify right side
    82,215.83x = 6,187,373,815.94
  5. Step 5: Solve for x
    x = 6,187,373,815.94/82,215.83
  6. Step 6: Final answer
    x = 75,257.70

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1.5x scale

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.