Home / 84,429.97-126,644.92-31,827.15

Finding the Fourth Proportional to 84,429.97, 126,644.92 and 31,827.15

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Solution

The fourth proportional to 84,429.97, 126,644.92 and 31,827.15 is: 47,740.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,429.97 : 126,644.92 = 31,827.15 : x
  2. Step 2: Convert to fraction form
    84,429.97/126,644.92 = 31,827.15/x
  3. Step 3: Cross multiply
    84,429.97x = 126,644.92 × 31,827.15
  4. Step 4: Simplify right side
    84,429.97x = 4,030,746,865.58
  5. Step 5: Solve for x
    x = 4,030,746,865.58/84,429.97
  6. Step 6: Final answer
    x = 47,740.71

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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.