Home / 68,363.72-102,548.61-20,975.34

Finding the Fourth Proportional to 68,363.72, 102,548.61 and 20,975.34

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Solution

The fourth proportional to 68,363.72, 102,548.61 and 20,975.34 is: 31,463.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,363.72 : 102,548.61 = 20,975.34 : x
  2. Step 2: Convert to fraction form
    68,363.72/102,548.61 = 20,975.34/x
  3. Step 3: Cross multiply
    68,363.72x = 102,548.61 × 20,975.34
  4. Step 4: Simplify right side
    68,363.72x = 2,150,991,961.28
  5. Step 5: Solve for x
    x = 2,150,991,961.28/68,363.72
  6. Step 6: Final answer
    x = 31,463.94

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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.