Home / 83,839.07-125,757.50-20,659.95

Finding the Fourth Proportional to 83,839.07, 125,757.50 and 20,659.95

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Solution

The fourth proportional to 83,839.07, 125,757.50 and 20,659.95 is: 30,989.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,839.07 : 125,757.50 = 20,659.95 : x
  2. Step 2: Convert to fraction form
    83,839.07/125,757.50 = 20,659.95/x
  3. Step 3: Cross multiply
    83,839.07x = 125,757.50 × 20,659.95
  4. Step 4: Simplify right side
    83,839.07x = 2,598,143,558.83
  5. Step 5: Solve for x
    x = 2,598,143,558.83/83,839.07
  6. Step 6: Final answer
    x = 30,989.65

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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.