Home / 64,147.20-95,961.60-55,478.40

Finding the Fourth Proportional to 64,147.20, 95,961.60 and 55,478.40

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Solution

The fourth proportional to 64,147.20, 95,961.60 and 55,478.40 is: 82,993.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,147.20 : 95,961.60 = 55,478.40 : x
  2. Step 2: Convert to fraction form
    64,147.20/95,961.60 = 55,478.40/x
  3. Step 3: Cross multiply
    64,147.20x = 95,961.60 × 55,478.40
  4. Step 4: Simplify right side
    64,147.20x = 5,323,796,029.44
  5. Step 5: Solve for x
    x = 5,323,796,029.44/64,147.20
  6. Step 6: Final answer
    x = 82,993.43

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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.