Home / 79,019.87-118,520.68-19,851.04

Finding the Fourth Proportional to 79,019.87, 118,520.68 and 19,851.04

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Solution

The fourth proportional to 79,019.87, 118,520.68 and 19,851.04 is: 29,774.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,019.87 : 118,520.68 = 19,851.04 : x
  2. Step 2: Convert to fraction form
    79,019.87/118,520.68 = 19,851.04/x
  3. Step 3: Cross multiply
    79,019.87x = 118,520.68 × 19,851.04
  4. Step 4: Simplify right side
    79,019.87x = 2,352,758,759.51
  5. Step 5: Solve for x
    x = 2,352,758,759.51/79,019.87
  6. Step 6: Final answer
    x = 29,774.27

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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.