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Finding the Fourth Proportional to 84,951.40, 127,524.30 and 49,910.80

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Solution

The fourth proportional to 84,951.40, 127,524.30 and 49,910.80 is: 74,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,951.40 : 127,524.30 = 49,910.80 : x
  2. Step 2: Convert to fraction form
    84,951.40/127,524.30 = 49,910.80/x
  3. Step 3: Cross multiply
    84,951.40x = 127,524.30 × 49,910.80
  4. Step 4: Simplify right side
    84,951.40x = 6,364,839,832.44
  5. Step 5: Solve for x
    x = 6,364,839,832.44/84,951.40
  6. Step 6: Final answer
    x = 74,923.31

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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.