Home / 79,837.09-119,757.79-19,863.14

Finding the Fourth Proportional to 79,837.09, 119,757.79 and 19,863.14

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Solution

The fourth proportional to 79,837.09, 119,757.79 and 19,863.14 is: 29,795.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,837.09 : 119,757.79 = 19,863.14 : x
  2. Step 2: Convert to fraction form
    79,837.09/119,757.79 = 19,863.14/x
  3. Step 3: Cross multiply
    79,837.09x = 119,757.79 × 19,863.14
  4. Step 4: Simplify right side
    79,837.09x = 2,378,765,748.86
  5. Step 5: Solve for x
    x = 2,378,765,748.86/79,837.09
  6. Step 6: Final answer
    x = 29,795.25

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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.