Home / 79,519.81-119,279.11-19,548.02

Finding the Fourth Proportional to 79,519.81, 119,279.11 and 19,548.02

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Solution

The fourth proportional to 79,519.81, 119,279.11 and 19,548.02 is: 29,321.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,519.81 : 119,279.11 = 19,548.02 : x
  2. Step 2: Convert to fraction form
    79,519.81/119,279.11 = 19,548.02/x
  3. Step 3: Cross multiply
    79,519.81x = 119,279.11 × 19,548.02
  4. Step 4: Simplify right side
    79,519.81x = 2,331,670,427.86
  5. Step 5: Solve for x
    x = 2,331,670,427.86/79,519.81
  6. Step 6: Final answer
    x = 29,321.88

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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.