Home / 45,507.05-68,215.21-21,770.81

Finding the Fourth Proportional to 45,507.05, 68,215.21 and 21,770.81

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Solution

The fourth proportional to 45,507.05, 68,215.21 and 21,770.81 is: 32,634.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,507.05 : 68,215.21 = 21,770.81 : x
  2. Step 2: Convert to fraction form
    45,507.05/68,215.21 = 21,770.81/x
  3. Step 3: Cross multiply
    45,507.05x = 68,215.21 × 21,770.81
  4. Step 4: Simplify right side
    45,507.05x = 1,485,100,376.02
  5. Step 5: Solve for x
    x = 1,485,100,376.02/45,507.05
  6. Step 6: Final answer
    x = 32,634.51

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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.