Home / 57,579.14-86,361.83-20,136.34

Finding the Fourth Proportional to 57,579.14, 86,361.83 and 20,136.34

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Solution

The fourth proportional to 57,579.14, 86,361.83 and 20,136.34 is: 30,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,579.14 : 86,361.83 = 20,136.34 : x
  2. Step 2: Convert to fraction form
    57,579.14/86,361.83 = 20,136.34/x
  3. Step 3: Cross multiply
    57,579.14x = 86,361.83 × 20,136.34
  4. Step 4: Simplify right side
    57,579.14x = 1,739,011,171.90
  5. Step 5: Solve for x
    x = 1,739,011,171.90/57,579.14
  6. Step 6: Final answer
    x = 30,202.10

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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.