Home / 84,175.98-126,231.03-31,556.76

Finding the Fourth Proportional to 84,175.98, 126,231.03 and 31,556.76

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Solution

The fourth proportional to 84,175.98, 126,231.03 and 31,556.76 is: 47,322.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,175.98 : 126,231.03 = 31,556.76 : x
  2. Step 2: Convert to fraction form
    84,175.98/126,231.03 = 31,556.76/x
  3. Step 3: Cross multiply
    84,175.98x = 126,231.03 × 31,556.76
  4. Step 4: Simplify right side
    84,175.98x = 3,983,442,318.26
  5. Step 5: Solve for x
    x = 3,983,442,318.26/84,175.98
  6. Step 6: Final answer
    x = 47,322.79

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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.