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Finding the Fourth Proportional to 57,662.46, 86,493.16 and 18,219.56

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Solution

The fourth proportional to 57,662.46, 86,493.16 and 18,219.56 is: 27,329.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,662.46 : 86,493.16 = 18,219.56 : x
  2. Step 2: Convert to fraction form
    57,662.46/86,493.16 = 18,219.56/x
  3. Step 3: Cross multiply
    57,662.46x = 86,493.16 × 18,219.56
  4. Step 4: Simplify right side
    57,662.46x = 1,575,867,318.21
  5. Step 5: Solve for x
    x = 1,575,867,318.21/57,662.46
  6. Step 6: Final answer
    x = 27,329.17

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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.