Home / 51,272.90-76,917.05-17,987.11

Finding the Fourth Proportional to 51,272.90, 76,917.05 and 17,987.11

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Solution

The fourth proportional to 51,272.90, 76,917.05 and 17,987.11 is: 26,983.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,272.90 : 76,917.05 = 17,987.11 : x
  2. Step 2: Convert to fraction form
    51,272.90/76,917.05 = 17,987.11/x
  3. Step 3: Cross multiply
    51,272.90x = 76,917.05 × 17,987.11
  4. Step 4: Simplify right side
    51,272.90x = 1,383,515,157.00
  5. Step 5: Solve for x
    x = 1,383,515,157.00/51,272.90
  6. Step 6: Final answer
    x = 26,983.36

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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.