Home / 45,489.21-68,224.41-12,201.36

Finding the Fourth Proportional to 45,489.21, 68,224.41 and 12,201.36

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Solution

The fourth proportional to 45,489.21, 68,224.41 and 12,201.36 is: 18,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,489.21 : 68,224.41 = 12,201.36 : x
  2. Step 2: Convert to fraction form
    45,489.21/68,224.41 = 12,201.36/x
  3. Step 3: Cross multiply
    45,489.21x = 68,224.41 × 12,201.36
  4. Step 4: Simplify right side
    45,489.21x = 832,430,587.20
  5. Step 5: Solve for x
    x = 832,430,587.20/45,489.21
  6. Step 6: Final answer
    x = 18,299.52

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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.