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Finding the Fourth Proportional to 67,586, 101,379.40 and 18,338

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Solution

The fourth proportional to 67,586, 101,379.40 and 18,338 is: 27,507.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,586 : 101,379.40 = 18,338 : x
  2. Step 2: Convert to fraction form
    67,586/101,379.40 = 18,338/x
  3. Step 3: Cross multiply
    67,586x = 101,379.40 × 18,338
  4. Step 4: Simplify right side
    67,586x = 1,859,095,437.20
  5. Step 5: Solve for x
    x = 1,859,095,437.20/67,586
  6. Step 6: Final answer
    x = 27,507.11

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