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Finding the Fourth Proportional to 57,682.98, 86,538.39 and 21,659.73

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Solution

The fourth proportional to 57,682.98, 86,538.39 and 21,659.73 is: 32,494.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,682.98 : 86,538.39 = 21,659.73 : x
  2. Step 2: Convert to fraction form
    57,682.98/86,538.39 = 21,659.73/x
  3. Step 3: Cross multiply
    57,682.98x = 86,538.39 × 21,659.73
  4. Step 4: Simplify right side
    57,682.98x = 1,874,398,167.21
  5. Step 5: Solve for x
    x = 1,874,398,167.21/57,682.98
  6. Step 6: Final answer
    x = 32,494.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.