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Finding the Fourth Proportional to 73,381.80, 101,286 and 68,395.44

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Solution

The fourth proportional to 73,381.80, 101,286 and 68,395.44 is: 94,403.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,381.80 : 101,286 = 68,395.44 : x
  2. Step 2: Convert to fraction form
    73,381.80/101,286 = 68,395.44/x
  3. Step 3: Cross multiply
    73,381.80x = 101,286 × 68,395.44
  4. Step 4: Simplify right side
    73,381.80x = 6,927,500,535.84
  5. Step 5: Solve for x
    x = 6,927,500,535.84/73,381.80
  6. Step 6: Final answer
    x = 94,403.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.