Home / 83,884.87-125,788.42-31,280.23

Finding the Fourth Proportional to 83,884.87, 125,788.42 and 31,280.23

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Solution

The fourth proportional to 83,884.87, 125,788.42 and 31,280.23 is: 46,905.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,884.87 : 125,788.42 = 31,280.23 : x
  2. Step 2: Convert to fraction form
    83,884.87/125,788.42 = 31,280.23/x
  3. Step 3: Cross multiply
    83,884.87x = 125,788.42 × 31,280.23
  4. Step 4: Simplify right side
    83,884.87x = 3,934,690,708.94
  5. Step 5: Solve for x
    x = 3,934,690,708.94/83,884.87
  6. Step 6: Final answer
    x = 46,905.84

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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.