Home / 45,380.52-68,047.38-20,399.22

Finding the Fourth Proportional to 45,380.52, 68,047.38 and 20,399.22

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Solution

The fourth proportional to 45,380.52, 68,047.38 and 20,399.22 is: 30,588.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,380.52 : 68,047.38 = 20,399.22 : x
  2. Step 2: Convert to fraction form
    45,380.52/68,047.38 = 20,399.22/x
  3. Step 3: Cross multiply
    45,380.52x = 68,047.38 × 20,399.22
  4. Step 4: Simplify right side
    45,380.52x = 1,388,113,475.04
  5. Step 5: Solve for x
    x = 1,388,113,475.04/45,380.52
  6. Step 6: Final answer
    x = 30,588.31

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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.