Home / 90,613.28-125,042-50,329.60

Finding the Fourth Proportional to 90,613.28, 125,042 and 50,329.60

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Solution

The fourth proportional to 90,613.28, 125,042 and 50,329.60 is: 69,452.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,613.28 : 125,042 = 50,329.60 : x
  2. Step 2: Convert to fraction form
    90,613.28/125,042 = 50,329.60/x
  3. Step 3: Cross multiply
    90,613.28x = 125,042 × 50,329.60
  4. Step 4: Simplify right side
    90,613.28x = 6,293,313,843.20
  5. Step 5: Solve for x
    x = 6,293,313,843.20/90,613.28
  6. Step 6: Final answer
    x = 69,452.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.