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Finding the Fourth Proportional to 79,829.80, 119,709.95 and 22,891.15

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Solution

The fourth proportional to 79,829.80, 119,709.95 and 22,891.15 is: 34,326.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,829.80 : 119,709.95 = 22,891.15 : x
  2. Step 2: Convert to fraction form
    79,829.80/119,709.95 = 22,891.15/x
  3. Step 3: Cross multiply
    79,829.80x = 119,709.95 × 22,891.15
  4. Step 4: Simplify right side
    79,829.80x = 2,740,298,457.12
  5. Step 5: Solve for x
    x = 2,740,298,457.12/79,829.80
  6. Step 6: Final answer
    x = 34,326.76

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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.