Home / 51,808.20-77,708.79-20,212.44

Finding the Fourth Proportional to 51,808.20, 77,708.79 and 20,212.44

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Solution

The fourth proportional to 51,808.20, 77,708.79 and 20,212.44 is: 30,317.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,808.20 : 77,708.79 = 20,212.44 : x
  2. Step 2: Convert to fraction form
    51,808.20/77,708.79 = 20,212.44/x
  3. Step 3: Cross multiply
    51,808.20x = 77,708.79 × 20,212.44
  4. Step 4: Simplify right side
    51,808.20x = 1,570,684,255.35
  5. Step 5: Solve for x
    x = 1,570,684,255.35/51,808.20
  6. Step 6: Final answer
    x = 30,317.29

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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.