Home / 85,177.78-127,635.24-53,947.42

Finding the Fourth Proportional to 85,177.78, 127,635.24 and 53,947.42

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Solution

The fourth proportional to 85,177.78, 127,635.24 and 53,947.42 is: 80,837.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,177.78 : 127,635.24 = 53,947.42 : x
  2. Step 2: Convert to fraction form
    85,177.78/127,635.24 = 53,947.42/x
  3. Step 3: Cross multiply
    85,177.78x = 127,635.24 × 53,947.42
  4. Step 4: Simplify right side
    85,177.78x = 6,885,591,899.08
  5. Step 5: Solve for x
    x = 6,885,591,899.08/85,177.78
  6. Step 6: Final answer
    x = 80,837.89

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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.