Home / 79,172.29-118,759.20-20,007.96

Finding the Fourth Proportional to 79,172.29, 118,759.20 and 20,007.96

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Solution

The fourth proportional to 79,172.29, 118,759.20 and 20,007.96 is: 30,012.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,172.29 : 118,759.20 = 20,007.96 : x
  2. Step 2: Convert to fraction form
    79,172.29/118,759.20 = 20,007.96/x
  3. Step 3: Cross multiply
    79,172.29x = 118,759.20 × 20,007.96
  4. Step 4: Simplify right side
    79,172.29x = 2,376,129,470.88
  5. Step 5: Solve for x
    x = 2,376,129,470.88/79,172.29
  6. Step 6: Final answer
    x = 30,012.14

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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.