Home / 45,393.22-68,089.82-13,803.54

Finding the Fourth Proportional to 45,393.22, 68,089.82 and 13,803.54

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Solution

The fourth proportional to 45,393.22, 68,089.82 and 13,803.54 is: 20,705.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,393.22 : 68,089.82 = 13,803.54 : x
  2. Step 2: Convert to fraction form
    45,393.22/68,089.82 = 13,803.54/x
  3. Step 3: Cross multiply
    45,393.22x = 68,089.82 × 13,803.54
  4. Step 4: Simplify right side
    45,393.22x = 939,880,553.96
  5. Step 5: Solve for x
    x = 939,880,553.96/45,393.22
  6. Step 6: Final answer
    x = 20,705.31

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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.