Home / 52,212.50-78,327.68-20,606.07

Finding the Fourth Proportional to 52,212.50, 78,327.68 and 20,606.07

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Solution

The fourth proportional to 52,212.50, 78,327.68 and 20,606.07 is: 30,912.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,212.50 : 78,327.68 = 20,606.07 : x
  2. Step 2: Convert to fraction form
    52,212.50/78,327.68 = 20,606.07/x
  3. Step 3: Cross multiply
    52,212.50x = 78,327.68 × 20,606.07
  4. Step 4: Simplify right side
    52,212.50x = 1,614,025,553.99
  5. Step 5: Solve for x
    x = 1,614,025,553.99/52,212.50
  6. Step 6: Final answer
    x = 30,912.63

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1.5x scale

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.