Home / 51,004.78-76,519.47-17,720

Finding the Fourth Proportional to 51,004.78, 76,519.47 and 17,720

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Solution

The fourth proportional to 51,004.78, 76,519.47 and 17,720 is: 26,584.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,004.78 : 76,519.47 = 17,720 : x
  2. Step 2: Convert to fraction form
    51,004.78/76,519.47 = 17,720/x
  3. Step 3: Cross multiply
    51,004.78x = 76,519.47 × 17,720
  4. Step 4: Simplify right side
    51,004.78x = 1,355,925,008.40
  5. Step 5: Solve for x
    x = 1,355,925,008.40/51,004.78
  6. Step 6: Final answer
    x = 26,584.27

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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.