Home / 43,238.40-64,906.20-33,421.20

Finding the Fourth Proportional to 43,238.40, 64,906.20 and 33,421.20

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Solution

The fourth proportional to 43,238.40, 64,906.20 and 33,421.20 is: 50,169.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,238.40 : 64,906.20 = 33,421.20 : x
  2. Step 2: Convert to fraction form
    43,238.40/64,906.20 = 33,421.20/x
  3. Step 3: Cross multiply
    43,238.40x = 64,906.20 × 33,421.20
  4. Step 4: Simplify right side
    43,238.40x = 2,169,243,091.44
  5. Step 5: Solve for x
    x = 2,169,243,091.44/43,238.40
  6. Step 6: Final answer
    x = 50,169.37

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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.