Home / 84,639.06-126,943.99-25,458.84

Finding the Fourth Proportional to 84,639.06, 126,943.99 and 25,458.84

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Solution

The fourth proportional to 84,639.06, 126,943.99 and 25,458.84 is: 38,183.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,639.06 : 126,943.99 = 25,458.84 : x
  2. Step 2: Convert to fraction form
    84,639.06/126,943.99 = 25,458.84/x
  3. Step 3: Cross multiply
    84,639.06x = 126,943.99 × 25,458.84
  4. Step 4: Simplify right side
    84,639.06x = 3,231,846,730.37
  5. Step 5: Solve for x
    x = 3,231,846,730.37/84,639.06
  6. Step 6: Final answer
    x = 38,183.87

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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.