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Finding the Fourth Proportional to 50,093.76, 69,129.28 and 28,872.88

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Solution

The fourth proportional to 50,093.76, 69,129.28 and 28,872.88 is: 39,844.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,093.76 : 69,129.28 = 28,872.88 : x
  2. Step 2: Convert to fraction form
    50,093.76/69,129.28 = 28,872.88/x
  3. Step 3: Cross multiply
    50,093.76x = 69,129.28 × 28,872.88
  4. Step 4: Simplify right side
    50,093.76x = 1,995,961,405.93
  5. Step 5: Solve for x
    x = 1,995,961,405.93/50,093.76
  6. Step 6: Final answer
    x = 39,844.51

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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.