Home / 51,141.51-76,720.53-15,121.62

Finding the Fourth Proportional to 51,141.51, 76,720.53 and 15,121.62

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Solution

The fourth proportional to 51,141.51, 76,720.53 and 15,121.62 is: 22,684.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,141.51 : 76,720.53 = 15,121.62 : x
  2. Step 2: Convert to fraction form
    51,141.51/76,720.53 = 15,121.62/x
  3. Step 3: Cross multiply
    51,141.51x = 76,720.53 × 15,121.62
  4. Step 4: Simplify right side
    51,141.51x = 1,160,138,757.56
  5. Step 5: Solve for x
    x = 1,160,138,757.56/51,141.51
  6. Step 6: Final answer
    x = 22,684.87

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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.