Home / 43,138.96-64,655.16-18,170.26

Finding the Fourth Proportional to 43,138.96, 64,655.16 and 18,170.26

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Solution

The fourth proportional to 43,138.96, 64,655.16 and 18,170.26 is: 27,232.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,138.96 : 64,655.16 = 18,170.26 : x
  2. Step 2: Convert to fraction form
    43,138.96/64,655.16 = 18,170.26/x
  3. Step 3: Cross multiply
    43,138.96x = 64,655.16 × 18,170.26
  4. Step 4: Simplify right side
    43,138.96x = 1,174,801,067.54
  5. Step 5: Solve for x
    x = 1,174,801,067.54/43,138.96
  6. Step 6: Final answer
    x = 27,232.95

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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.