Home / 65,705.22-98,556.39-21,331.89

Finding the Fourth Proportional to 65,705.22, 98,556.39 and 21,331.89

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Solution

The fourth proportional to 65,705.22, 98,556.39 and 21,331.89 is: 31,997.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,705.22 : 98,556.39 = 21,331.89 : x
  2. Step 2: Convert to fraction form
    65,705.22/98,556.39 = 21,331.89/x
  3. Step 3: Cross multiply
    65,705.22x = 98,556.39 × 21,331.89
  4. Step 4: Simplify right side
    65,705.22x = 2,102,394,070.28
  5. Step 5: Solve for x
    x = 2,102,394,070.28/65,705.22
  6. Step 6: Final answer
    x = 31,997.37

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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.