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Finding the Fourth Proportional to 57,677.87, 86,530.27 and 19,727.44

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Solution

The fourth proportional to 57,677.87, 86,530.27 and 19,727.44 is: 29,595.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,677.87 : 86,530.27 = 19,727.44 : x
  2. Step 2: Convert to fraction form
    57,677.87/86,530.27 = 19,727.44/x
  3. Step 3: Cross multiply
    57,677.87x = 86,530.27 × 19,727.44
  4. Step 4: Simplify right side
    57,677.87x = 1,707,020,406.98
  5. Step 5: Solve for x
    x = 1,707,020,406.98/57,677.87
  6. Step 6: Final answer
    x = 29,595.76

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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.