Home / 84,537.85-126,815.23-31,243.84

Finding the Fourth Proportional to 84,537.85, 126,815.23 and 31,243.84

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Solution

The fourth proportional to 84,537.85, 126,815.23 and 31,243.84 is: 46,868.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,537.85 : 126,815.23 = 31,243.84 : x
  2. Step 2: Convert to fraction form
    84,537.85/126,815.23 = 31,243.84/x
  3. Step 3: Cross multiply
    84,537.85x = 126,815.23 × 31,243.84
  4. Step 4: Simplify right side
    84,537.85x = 3,962,194,755.68
  5. Step 5: Solve for x
    x = 3,962,194,755.68/84,537.85
  6. Step 6: Final answer
    x = 46,868.88

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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.