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Finding the Fourth Proportional to 68,893.91, 95,070.48 and 38,678.68

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Solution

The fourth proportional to 68,893.91, 95,070.48 and 38,678.68 is: 53,374.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,893.91 : 95,070.48 = 38,678.68 : x
  2. Step 2: Convert to fraction form
    68,893.91/95,070.48 = 38,678.68/x
  3. Step 3: Cross multiply
    68,893.91x = 95,070.48 × 38,678.68
  4. Step 4: Simplify right side
    68,893.91x = 3,677,200,198.01
  5. Step 5: Solve for x
    x = 3,677,200,198.01/68,893.91
  6. Step 6: Final answer
    x = 53,374.83

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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.