Home / 79,380.48-119,071.94-20,217.27

Finding the Fourth Proportional to 79,380.48, 119,071.94 and 20,217.27

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Solution

The fourth proportional to 79,380.48, 119,071.94 and 20,217.27 is: 30,326.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,380.48 : 119,071.94 = 20,217.27 : x
  2. Step 2: Convert to fraction form
    79,380.48/119,071.94 = 20,217.27/x
  3. Step 3: Cross multiply
    79,380.48x = 119,071.94 × 20,217.27
  4. Step 4: Simplify right side
    79,380.48x = 2,407,309,459.32
  5. Step 5: Solve for x
    x = 2,407,309,459.32/79,380.48
  6. Step 6: Final answer
    x = 30,326.21

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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.