Home / 49,855.12-68,797.48-30,991.92

Finding the Fourth Proportional to 49,855.12, 68,797.48 and 30,991.92

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Solution

The fourth proportional to 49,855.12, 68,797.48 and 30,991.92 is: 42,767.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,855.12 : 68,797.48 = 30,991.92 : x
  2. Step 2: Convert to fraction form
    49,855.12/68,797.48 = 30,991.92/x
  3. Step 3: Cross multiply
    49,855.12x = 68,797.48 × 30,991.92
  4. Step 4: Simplify right side
    49,855.12x = 2,132,165,996.36
  5. Step 5: Solve for x
    x = 2,132,165,996.36/49,855.12
  6. Step 6: Final answer
    x = 42,767.24

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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.