Home / 279,581.42-419,372.14-69,219.36

Finding the Fourth Proportional to 279,581.42, 419,372.14 and 69,219.36

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Solution

The fourth proportional to 279,581.42, 419,372.14 and 69,219.36 is: 103,829.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,581.42 : 419,372.14 = 69,219.36 : x
  2. Step 2: Convert to fraction form
    279,581.42/419,372.14 = 69,219.36/x
  3. Step 3: Cross multiply
    279,581.42x = 419,372.14 × 69,219.36
  4. Step 4: Simplify right side
    279,581.42x = 29,028,670,786.53
  5. Step 5: Solve for x
    x = 29,028,670,786.53/279,581.42
  6. Step 6: Final answer
    x = 103,829.04

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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.