Home / 79,502.30-119,257.53-20,338.48

Finding the Fourth Proportional to 79,502.30, 119,257.53 and 20,338.48

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Solution

The fourth proportional to 79,502.30, 119,257.53 and 20,338.48 is: 30,508.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,502.30 : 119,257.53 = 20,338.48 : x
  2. Step 2: Convert to fraction form
    79,502.30/119,257.53 = 20,338.48/x
  3. Step 3: Cross multiply
    79,502.30x = 119,257.53 × 20,338.48
  4. Step 4: Simplify right side
    79,502.30x = 2,425,516,888.75
  5. Step 5: Solve for x
    x = 2,425,516,888.75/79,502.30
  6. Step 6: Final answer
    x = 30,508.76

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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.