Home / 83,884.62-125,788.05-31,279.98

Finding the Fourth Proportional to 83,884.62, 125,788.05 and 31,279.98

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Solution

The fourth proportional to 83,884.62, 125,788.05 and 31,279.98 is: 46,905.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,884.62 : 125,788.05 = 31,279.98 : x
  2. Step 2: Convert to fraction form
    83,884.62/125,788.05 = 31,279.98/x
  3. Step 3: Cross multiply
    83,884.62x = 125,788.05 × 31,279.98
  4. Step 4: Simplify right side
    83,884.62x = 3,934,647,688.24
  5. Step 5: Solve for x
    x = 3,934,647,688.24/83,884.62
  6. Step 6: Final answer
    x = 46,905.47

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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.