Home / 51,286.24-76,885.20-20,114.08

Finding the Fourth Proportional to 51,286.24, 76,885.20 and 20,114.08

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Solution

The fourth proportional to 51,286.24, 76,885.20 and 20,114.08 is: 30,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,286.24 : 76,885.20 = 20,114.08 : x
  2. Step 2: Convert to fraction form
    51,286.24/76,885.20 = 20,114.08/x
  3. Step 3: Cross multiply
    51,286.24x = 76,885.20 × 20,114.08
  4. Step 4: Simplify right side
    51,286.24x = 1,546,475,063.62
  5. Step 5: Solve for x
    x = 1,546,475,063.62/51,286.24
  6. Step 6: Final answer
    x = 30,153.80

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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.