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Finding the Fourth Proportional to 50,747.60, 76,121.40 and 17,505.20

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Solution

The fourth proportional to 50,747.60, 76,121.40 and 17,505.20 is: 26,257.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,747.60 : 76,121.40 = 17,505.20 : x
  2. Step 2: Convert to fraction form
    50,747.60/76,121.40 = 17,505.20/x
  3. Step 3: Cross multiply
    50,747.60x = 76,121.40 × 17,505.20
  4. Step 4: Simplify right side
    50,747.60x = 1,332,520,331.28
  5. Step 5: Solve for x
    x = 1,332,520,331.28/50,747.60
  6. Step 6: Final answer
    x = 26,257.80

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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.