Home / 65,745.27-98,617.30-28,331.78

Finding the Fourth Proportional to 65,745.27, 98,617.30 and 28,331.78

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Solution

The fourth proportional to 65,745.27, 98,617.30 and 28,331.78 is: 42,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,745.27 : 98,617.30 = 28,331.78 : x
  2. Step 2: Convert to fraction form
    65,745.27/98,617.30 = 28,331.78/x
  3. Step 3: Cross multiply
    65,745.27x = 98,617.30 × 28,331.78
  4. Step 4: Simplify right side
    65,745.27x = 2,794,003,083.88
  5. Step 5: Solve for x
    x = 2,794,003,083.88/65,745.27
  6. Step 6: Final answer
    x = 42,497.40

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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.