Home / 73,131.20-109,674.10-26,378

Finding the Fourth Proportional to 73,131.20, 109,674.10 and 26,378

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Solution

The fourth proportional to 73,131.20, 109,674.10 and 26,378 is: 39,558.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,131.20 : 109,674.10 = 26,378 : x
  2. Step 2: Convert to fraction form
    73,131.20/109,674.10 = 26,378/x
  3. Step 3: Cross multiply
    73,131.20x = 109,674.10 × 26,378
  4. Step 4: Simplify right side
    73,131.20x = 2,892,983,409.80
  5. Step 5: Solve for x
    x = 2,892,983,409.80/73,131.20
  6. Step 6: Final answer
    x = 39,558.81

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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.