Home / 81,601.26-112,617.84-54,799.56

Finding the Fourth Proportional to 81,601.26, 112,617.84 and 54,799.56

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Solution

The fourth proportional to 81,601.26, 112,617.84 and 54,799.56 is: 75,628.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,601.26 : 112,617.84 = 54,799.56 : x
  2. Step 2: Convert to fraction form
    81,601.26/112,617.84 = 54,799.56/x
  3. Step 3: Cross multiply
    81,601.26x = 112,617.84 × 54,799.56
  4. Step 4: Simplify right side
    81,601.26x = 6,171,408,080.15
  5. Step 5: Solve for x
    x = 6,171,408,080.15/81,601.26
  6. Step 6: Final answer
    x = 75,628.83

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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.