Home / 81,162.33-121,765.95-33,799.71

Finding the Fourth Proportional to 81,162.33, 121,765.95 and 33,799.71

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Solution

The fourth proportional to 81,162.33, 121,765.95 and 33,799.71 is: 50,708.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,162.33 : 121,765.95 = 33,799.71 : x
  2. Step 2: Convert to fraction form
    81,162.33/121,765.95 = 33,799.71/x
  3. Step 3: Cross multiply
    81,162.33x = 121,765.95 × 33,799.71
  4. Step 4: Simplify right side
    81,162.33x = 4,115,653,797.87
  5. Step 5: Solve for x
    x = 4,115,653,797.87/81,162.33
  6. Step 6: Final answer
    x = 50,708.92

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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.