Home / 83,930.58-125,917.20-31,340.52

Finding the Fourth Proportional to 83,930.58, 125,917.20 and 31,340.52

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Solution

The fourth proportional to 83,930.58, 125,917.20 and 31,340.52 is: 47,018.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,930.58 : 125,917.20 = 31,340.52 : x
  2. Step 2: Convert to fraction form
    83,930.58/125,917.20 = 31,340.52/x
  3. Step 3: Cross multiply
    83,930.58x = 125,917.20 × 31,340.52
  4. Step 4: Simplify right side
    83,930.58x = 3,946,310,524.94
  5. Step 5: Solve for x
    x = 3,946,310,524.94/83,930.58
  6. Step 6: Final answer
    x = 47,018.74

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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.