Home / 45,563.31-68,321.55-20,589.83

Finding the Fourth Proportional to 45,563.31, 68,321.55 and 20,589.83

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Solution

The fourth proportional to 45,563.31, 68,321.55 and 20,589.83 is: 30,874.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,563.31 : 68,321.55 = 20,589.83 : x
  2. Step 2: Convert to fraction form
    45,563.31/68,321.55 = 20,589.83/x
  3. Step 3: Cross multiply
    45,563.31x = 68,321.55 × 20,589.83
  4. Step 4: Simplify right side
    45,563.31x = 1,406,728,758.23
  5. Step 5: Solve for x
    x = 1,406,728,758.23/45,563.31
  6. Step 6: Final answer
    x = 30,874.16

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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.