Home / 85,791.96-128,688.03-35,844.84

Finding the Fourth Proportional to 85,791.96, 128,688.03 and 35,844.84

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Solution

The fourth proportional to 85,791.96, 128,688.03 and 35,844.84 is: 53,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,791.96 : 128,688.03 = 35,844.84 : x
  2. Step 2: Convert to fraction form
    85,791.96/128,688.03 = 35,844.84/x
  3. Step 3: Cross multiply
    85,791.96x = 128,688.03 × 35,844.84
  4. Step 4: Simplify right side
    85,791.96x = 4,612,801,845.27
  5. Step 5: Solve for x
    x = 4,612,801,845.27/85,791.96
  6. Step 6: Final answer
    x = 53,767.30

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Double scale
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Similar ratio
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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.