Home / 79,378.99-109,551.69-50,725.04

Finding the Fourth Proportional to 79,378.99, 109,551.69 and 50,725.04

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Solution

The fourth proportional to 79,378.99, 109,551.69 and 50,725.04 is: 70,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,378.99 : 109,551.69 = 50,725.04 : x
  2. Step 2: Convert to fraction form
    79,378.99/109,551.69 = 50,725.04/x
  3. Step 3: Cross multiply
    79,378.99x = 109,551.69 × 50,725.04
  4. Step 4: Simplify right side
    79,378.99x = 5,557,013,309.56
  5. Step 5: Solve for x
    x = 5,557,013,309.56/79,378.99
  6. Step 6: Final answer
    x = 70,006.10

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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.