Home / 79,722.09-119,610.78-35,379.90

Finding the Fourth Proportional to 79,722.09, 119,610.78 and 35,379.90

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Solution

The fourth proportional to 79,722.09, 119,610.78 and 35,379.90 is: 53,082.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,722.09 : 119,610.78 = 35,379.90 : x
  2. Step 2: Convert to fraction form
    79,722.09/119,610.78 = 35,379.90/x
  3. Step 3: Cross multiply
    79,722.09x = 119,610.78 × 35,379.90
  4. Step 4: Simplify right side
    79,722.09x = 4,231,817,435.32
  5. Step 5: Solve for x
    x = 4,231,817,435.32/79,722.09
  6. Step 6: Final answer
    x = 53,082.12

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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.