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Finding the Fourth Proportional to 67,974.80, 101,857.37 and 36,389.05

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Solution

The fourth proportional to 67,974.80, 101,857.37 and 36,389.05 is: 54,527.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,974.80 : 101,857.37 = 36,389.05 : x
  2. Step 2: Convert to fraction form
    67,974.80/101,857.37 = 36,389.05/x
  3. Step 3: Cross multiply
    67,974.80x = 101,857.37 × 36,389.05
  4. Step 4: Simplify right side
    67,974.80x = 3,706,492,493.21
  5. Step 5: Solve for x
    x = 3,706,492,493.21/67,974.80
  6. Step 6: Final answer
    x = 54,527.45

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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.