Home / 83,884.37-125,787.68-31,279.73

Finding the Fourth Proportional to 83,884.37, 125,787.68 and 31,279.73

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Solution

The fourth proportional to 83,884.37, 125,787.68 and 31,279.73 is: 46,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,884.37 : 125,787.68 = 31,279.73 : x
  2. Step 2: Convert to fraction form
    83,884.37/125,787.68 = 31,279.73/x
  3. Step 3: Cross multiply
    83,884.37x = 125,787.68 × 31,279.73
  4. Step 4: Simplify right side
    83,884.37x = 3,934,604,511.33
  5. Step 5: Solve for x
    x = 3,934,604,511.33/83,884.37
  6. Step 6: Final answer
    x = 46,905.10

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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.