Home / 52,212.33-78,327.38-20,605.86

Finding the Fourth Proportional to 52,212.33, 78,327.38 and 20,605.86

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Solution

The fourth proportional to 52,212.33, 78,327.38 and 20,605.86 is: 30,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,212.33 : 78,327.38 = 20,605.86 : x
  2. Step 2: Convert to fraction form
    52,212.33/78,327.38 = 20,605.86/x
  3. Step 3: Cross multiply
    52,212.33x = 78,327.38 × 20,605.86
  4. Step 4: Simplify right side
    52,212.33x = 1,614,003,077.96
  5. Step 5: Solve for x
    x = 1,614,003,077.96/52,212.33
  6. Step 6: Final answer
    x = 30,912.30

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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.