Home / 83,845.08-125,766.50-20,665.95

Finding the Fourth Proportional to 83,845.08, 125,766.50 and 20,665.95

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Solution

The fourth proportional to 83,845.08, 125,766.50 and 20,665.95 is: 30,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,845.08 : 125,766.50 = 20,665.95 : x
  2. Step 2: Convert to fraction form
    83,845.08/125,766.50 = 20,665.95/x
  3. Step 3: Cross multiply
    83,845.08x = 125,766.50 × 20,665.95
  4. Step 4: Simplify right side
    83,845.08x = 2,599,084,097.35
  5. Step 5: Solve for x
    x = 2,599,084,097.35/83,845.08
  6. Step 6: Final answer
    x = 30,998.65

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1.5x scale

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.