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Finding the Fourth Proportional to 65,745.55, 98,641.22 and 20,773.77

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Solution

The fourth proportional to 65,745.55, 98,641.22 and 20,773.77 is: 31,167.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,745.55 : 98,641.22 = 20,773.77 : x
  2. Step 2: Convert to fraction form
    65,745.55/98,641.22 = 20,773.77/x
  3. Step 3: Cross multiply
    65,745.55x = 98,641.22 × 20,773.77
  4. Step 4: Simplify right side
    65,745.55x = 2,049,149,601.45
  5. Step 5: Solve for x
    x = 2,049,149,601.45/65,745.55
  6. Step 6: Final answer
    x = 31,167.88

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1.5x scale

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.