Home / 83,982.96-125,996.10-31,392.84

Finding the Fourth Proportional to 83,982.96, 125,996.10 and 31,392.84

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Solution

The fourth proportional to 83,982.96, 125,996.10 and 31,392.84 is: 47,097.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,982.96 : 125,996.10 = 31,392.84 : x
  2. Step 2: Convert to fraction form
    83,982.96/125,996.10 = 31,392.84/x
  3. Step 3: Cross multiply
    83,982.96x = 125,996.10 × 31,392.84
  4. Step 4: Simplify right side
    83,982.96x = 3,955,375,407.92
  5. Step 5: Solve for x
    x = 3,955,375,407.92/83,982.96
  6. Step 6: Final answer
    x = 47,097.36

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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.