Home / 84,171.58-126,252.42-31,576.66

Finding the Fourth Proportional to 84,171.58, 126,252.42 and 31,576.66

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Solution

The fourth proportional to 84,171.58, 126,252.42 and 31,576.66 is: 47,363.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,171.58 : 126,252.42 = 31,576.66 : x
  2. Step 2: Convert to fraction form
    84,171.58/126,252.42 = 31,576.66/x
  3. Step 3: Cross multiply
    84,171.58x = 126,252.42 × 31,576.66
  4. Step 4: Simplify right side
    84,171.58x = 3,986,629,740.52
  5. Step 5: Solve for x
    x = 3,986,629,740.52/84,171.58
  6. Step 6: Final answer
    x = 47,363.13

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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.