Home / 51,771.86-77,650.04-20,196.14

Finding the Fourth Proportional to 51,771.86, 77,650.04 and 20,196.14

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Solution

The fourth proportional to 51,771.86, 77,650.04 and 20,196.14 is: 30,291.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,771.86 : 77,650.04 = 20,196.14 : x
  2. Step 2: Convert to fraction form
    51,771.86/77,650.04 = 20,196.14/x
  3. Step 3: Cross multiply
    51,771.86x = 77,650.04 × 20,196.14
  4. Step 4: Simplify right side
    51,771.86x = 1,568,230,741.09
  5. Step 5: Solve for x
    x = 1,568,230,741.09/51,771.86
  6. Step 6: Final answer
    x = 30,291.18

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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.