Home / 84,660.71-126,993.75-31,366.03

Finding the Fourth Proportional to 84,660.71, 126,993.75 and 31,366.03

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Solution

The fourth proportional to 84,660.71, 126,993.75 and 31,366.03 is: 47,050.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,660.71 : 126,993.75 = 31,366.03 : x
  2. Step 2: Convert to fraction form
    84,660.71/126,993.75 = 31,366.03/x
  3. Step 3: Cross multiply
    84,660.71x = 126,993.75 × 31,366.03
  4. Step 4: Simplify right side
    84,660.71x = 3,983,289,772.31
  5. Step 5: Solve for x
    x = 3,983,289,772.31/84,660.71
  6. Step 6: Final answer
    x = 47,050.04

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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.