Home / 279,373.29-419,073.77-79,723.09

Finding the Fourth Proportional to 279,373.29, 419,073.77 and 79,723.09

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Solution

The fourth proportional to 279,373.29, 419,073.77 and 79,723.09 is: 119,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,373.29 : 419,073.77 = 79,723.09 : x
  2. Step 2: Convert to fraction form
    279,373.29/419,073.77 = 79,723.09/x
  3. Step 3: Cross multiply
    279,373.29x = 419,073.77 × 79,723.09
  4. Step 4: Simplify right side
    279,373.29x = 33,409,855,483.73
  5. Step 5: Solve for x
    x = 33,409,855,483.73/279,373.29
  6. Step 6: Final answer
    x = 119,588.58

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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.