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Finding the Fourth Proportional to 50,120.80, 69,166.56 and 27,764.80

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Solution

The fourth proportional to 50,120.80, 69,166.56 and 27,764.80 is: 38,315.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,120.80 : 69,166.56 = 27,764.80 : x
  2. Step 2: Convert to fraction form
    50,120.80/69,166.56 = 27,764.80/x
  3. Step 3: Cross multiply
    50,120.80x = 69,166.56 × 27,764.80
  4. Step 4: Simplify right side
    50,120.80x = 1,920,395,705.09
  5. Step 5: Solve for x
    x = 1,920,395,705.09/50,120.80
  6. Step 6: Final answer
    x = 38,315.34

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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.