Home / 79,634.67-119,451.99-20,470.39

Finding the Fourth Proportional to 79,634.67, 119,451.99 and 20,470.39

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Solution

The fourth proportional to 79,634.67, 119,451.99 and 20,470.39 is: 30,705.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,634.67 : 119,451.99 = 20,470.39 : x
  2. Step 2: Convert to fraction form
    79,634.67/119,451.99 = 20,470.39/x
  3. Step 3: Cross multiply
    79,634.67x = 119,451.99 × 20,470.39
  4. Step 4: Simplify right side
    79,634.67x = 2,445,228,821.58
  5. Step 5: Solve for x
    x = 2,445,228,821.58/79,634.67
  6. Step 6: Final answer
    x = 30,705.58

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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.