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Finding the Fourth Proportional to 50,808.70, 70,115.25 and 28,147.65

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Solution

The fourth proportional to 50,808.70, 70,115.25 and 28,147.65 is: 38,843.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,808.70 : 70,115.25 = 28,147.65 : x
  2. Step 2: Convert to fraction form
    50,808.70/70,115.25 = 28,147.65/x
  3. Step 3: Cross multiply
    50,808.70x = 70,115.25 × 28,147.65
  4. Step 4: Simplify right side
    50,808.70x = 1,973,579,516.66
  5. Step 5: Solve for x
    x = 1,973,579,516.66/50,808.70
  6. Step 6: Final answer
    x = 38,843.34

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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.