Home / 52,571.20-78,664.80-38,747.20

Finding the Fourth Proportional to 52,571.20, 78,664.80 and 38,747.20

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Solution

The fourth proportional to 52,571.20, 78,664.80 and 38,747.20 is: 57,979.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,571.20 : 78,664.80 = 38,747.20 : x
  2. Step 2: Convert to fraction form
    52,571.20/78,664.80 = 38,747.20/x
  3. Step 3: Cross multiply
    52,571.20x = 78,664.80 × 38,747.20
  4. Step 4: Simplify right side
    52,571.20x = 3,048,040,738.56
  5. Step 5: Solve for x
    x = 3,048,040,738.56/52,571.20
  6. Step 6: Final answer
    x = 57,979.29

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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.