Home / 83,773.20-125,616.60-31,155.60

Finding the Fourth Proportional to 83,773.20, 125,616.60 and 31,155.60

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Solution

The fourth proportional to 83,773.20, 125,616.60 and 31,155.60 is: 46,717.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,773.20 : 125,616.60 = 31,155.60 : x
  2. Step 2: Convert to fraction form
    83,773.20/125,616.60 = 31,155.60/x
  3. Step 3: Cross multiply
    83,773.20x = 125,616.60 × 31,155.60
  4. Step 4: Simplify right side
    83,773.20x = 3,913,660,542.96
  5. Step 5: Solve for x
    x = 3,913,660,542.96/83,773.20
  6. Step 6: Final answer
    x = 46,717.33

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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.