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Finding the Fourth Proportional to 79,368.96, 119,053.02 and 20,205.48

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Solution

The fourth proportional to 79,368.96, 119,053.02 and 20,205.48 is: 30,308.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,368.96 : 119,053.02 = 20,205.48 : x
  2. Step 2: Convert to fraction form
    79,368.96/119,053.02 = 20,205.48/x
  3. Step 3: Cross multiply
    79,368.96x = 119,053.02 × 20,205.48
  4. Step 4: Simplify right side
    79,368.96x = 2,405,523,414.55
  5. Step 5: Solve for x
    x = 2,405,523,414.55/79,368.96
  6. Step 6: Final answer
    x = 30,308.11

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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.