Home / 45,955.68-68,905.82-20,650.56

Finding the Fourth Proportional to 45,955.68, 68,905.82 and 20,650.56

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Solution

The fourth proportional to 45,955.68, 68,905.82 and 20,650.56 is: 30,963.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,955.68 : 68,905.82 = 20,650.56 : x
  2. Step 2: Convert to fraction form
    45,955.68/68,905.82 = 20,650.56/x
  3. Step 3: Cross multiply
    45,955.68x = 68,905.82 × 20,650.56
  4. Step 4: Simplify right side
    45,955.68x = 1,422,943,770.26
  5. Step 5: Solve for x
    x = 1,422,943,770.26/45,955.68
  6. Step 6: Final answer
    x = 30,963.39

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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.