Home / 43,079.13-64,622.21-11,914.38

Finding the Fourth Proportional to 43,079.13, 64,622.21 and 11,914.38

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Solution

The fourth proportional to 43,079.13, 64,622.21 and 11,914.38 is: 17,872.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,079.13 : 64,622.21 = 11,914.38 : x
  2. Step 2: Convert to fraction form
    43,079.13/64,622.21 = 11,914.38/x
  3. Step 3: Cross multiply
    43,079.13x = 64,622.21 × 11,914.38
  4. Step 4: Simplify right side
    43,079.13x = 769,933,506.81
  5. Step 5: Solve for x
    x = 769,933,506.81/43,079.13
  6. Step 6: Final answer
    x = 17,872.54

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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.