Home / 83,406.47-125,109.24-20,226.55

Finding the Fourth Proportional to 83,406.47, 125,109.24 and 20,226.55

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Solution

The fourth proportional to 83,406.47, 125,109.24 and 20,226.55 is: 30,339.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,406.47 : 125,109.24 = 20,226.55 : x
  2. Step 2: Convert to fraction form
    83,406.47/125,109.24 = 20,226.55/x
  3. Step 3: Cross multiply
    83,406.47x = 125,109.24 × 20,226.55
  4. Step 4: Simplify right side
    83,406.47x = 2,530,528,298.32
  5. Step 5: Solve for x
    x = 2,530,528,298.32/83,406.47
  6. Step 6: Final answer
    x = 30,339.71

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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.