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Finding the Fourth Proportional to 85,469.44, 128,202.76 and 32,890.32

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Solution

The fourth proportional to 85,469.44, 128,202.76 and 32,890.32 is: 49,334.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,469.44 : 128,202.76 = 32,890.32 : x
  2. Step 2: Convert to fraction form
    85,469.44/128,202.76 = 32,890.32/x
  3. Step 3: Cross multiply
    85,469.44x = 128,202.76 × 32,890.32
  4. Step 4: Simplify right side
    85,469.44x = 4,216,629,801.28
  5. Step 5: Solve for x
    x = 4,216,629,801.28/85,469.44
  6. Step 6: Final answer
    x = 49,334.94

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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.