Home / 84,198.96-126,263.88-31,581.36

Finding the Fourth Proportional to 84,198.96, 126,263.88 and 31,581.36

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Solution

The fourth proportional to 84,198.96, 126,263.88 and 31,581.36 is: 47,359.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,198.96 : 126,263.88 = 31,581.36 : x
  2. Step 2: Convert to fraction form
    84,198.96/126,263.88 = 31,581.36/x
  3. Step 3: Cross multiply
    84,198.96x = 126,263.88 × 31,581.36
  4. Step 4: Simplify right side
    84,198.96x = 3,987,585,049.28
  5. Step 5: Solve for x
    x = 3,987,585,049.28/84,198.96
  6. Step 6: Final answer
    x = 47,359.08

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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.