Home / 84,106.47-126,179.97-31,516.41

Finding the Fourth Proportional to 84,106.47, 126,179.97 and 31,516.41

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Solution

The fourth proportional to 84,106.47, 126,179.97 and 31,516.41 is: 47,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,106.47 : 126,179.97 = 31,516.41 : x
  2. Step 2: Convert to fraction form
    84,106.47/126,179.97 = 31,516.41/x
  3. Step 3: Cross multiply
    84,106.47x = 126,179.97 × 31,516.41
  4. Step 4: Simplify right side
    84,106.47x = 3,976,739,668.31
  5. Step 5: Solve for x
    x = 3,976,739,668.31/84,106.47
  6. Step 6: Final answer
    x = 47,282.21

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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.