Home / 65,778.31-98,645.14-21,394.06

Finding the Fourth Proportional to 65,778.31, 98,645.14 and 21,394.06

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Solution

The fourth proportional to 65,778.31, 98,645.14 and 21,394.06 is: 32,083.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,778.31 : 98,645.14 = 21,394.06 : x
  2. Step 2: Convert to fraction form
    65,778.31/98,645.14 = 21,394.06/x
  3. Step 3: Cross multiply
    65,778.31x = 98,645.14 × 21,394.06
  4. Step 4: Simplify right side
    65,778.31x = 2,110,419,824.00
  5. Step 5: Solve for x
    x = 2,110,419,824.00/65,778.31
  6. Step 6: Final answer
    x = 32,083.82

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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.