Home / 43,179.87-64,778.01-15,107.90

Finding the Fourth Proportional to 43,179.87, 64,778.01 and 15,107.90

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Solution

The fourth proportional to 43,179.87, 64,778.01 and 15,107.90 is: 22,664.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,179.87 : 64,778.01 = 15,107.90 : x
  2. Step 2: Convert to fraction form
    43,179.87/64,778.01 = 15,107.90/x
  3. Step 3: Cross multiply
    43,179.87x = 64,778.01 × 15,107.90
  4. Step 4: Simplify right side
    43,179.87x = 978,659,802.57
  5. Step 5: Solve for x
    x = 978,659,802.57/43,179.87
  6. Step 6: Final answer
    x = 22,664.72

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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.