Home / 90,825.28-125,328-50,528.80

Finding the Fourth Proportional to 90,825.28, 125,328 and 50,528.80

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Solution

The fourth proportional to 90,825.28, 125,328 and 50,528.80 is: 69,723.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825.28 : 125,328 = 50,528.80 : x
  2. Step 2: Convert to fraction form
    90,825.28/125,328 = 50,528.80/x
  3. Step 3: Cross multiply
    90,825.28x = 125,328 × 50,528.80
  4. Step 4: Simplify right side
    90,825.28x = 6,332,673,446.40
  5. Step 5: Solve for x
    x = 6,332,673,446.40/90,825.28
  6. Step 6: Final answer
    x = 69,723.69

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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.