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Finding the Fourth Proportional to 52,068.78, 71,855.10 and 28,195.38

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Solution

The fourth proportional to 52,068.78, 71,855.10 and 28,195.38 is: 38,909.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,068.78 : 71,855.10 = 28,195.38 : x
  2. Step 2: Convert to fraction form
    52,068.78/71,855.10 = 28,195.38/x
  3. Step 3: Cross multiply
    52,068.78x = 71,855.10 × 28,195.38
  4. Step 4: Simplify right side
    52,068.78x = 2,025,981,849.44
  5. Step 5: Solve for x
    x = 2,025,981,849.44/52,068.78
  6. Step 6: Final answer
    x = 38,909.72

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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.