Home / 84,074.58-126,087.21-31,471.74

Finding the Fourth Proportional to 84,074.58, 126,087.21 and 31,471.74

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Solution

The fourth proportional to 84,074.58, 126,087.21 and 31,471.74 is: 47,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,074.58 : 126,087.21 = 31,471.74 : x
  2. Step 2: Convert to fraction form
    84,074.58/126,087.21 = 31,471.74/x
  3. Step 3: Cross multiply
    84,074.58x = 126,087.21 × 31,471.74
  4. Step 4: Simplify right side
    84,074.58x = 3,968,183,890.45
  5. Step 5: Solve for x
    x = 3,968,183,890.45/84,074.58
  6. Step 6: Final answer
    x = 47,198.38

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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.