Home / 49,745.08-68,654.76-28,520.20

Finding the Fourth Proportional to 49,745.08, 68,654.76 and 28,520.20

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Solution

The fourth proportional to 49,745.08, 68,654.76 and 28,520.20 is: 39,361.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,745.08 : 68,654.76 = 28,520.20 : x
  2. Step 2: Convert to fraction form
    49,745.08/68,654.76 = 28,520.20/x
  3. Step 3: Cross multiply
    49,745.08x = 68,654.76 × 28,520.20
  4. Step 4: Simplify right side
    49,745.08x = 1,958,047,486.15
  5. Step 5: Solve for x
    x = 1,958,047,486.15/49,745.08
  6. Step 6: Final answer
    x = 39,361.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.