Home / 81,086.56-111,899.52-45,276.52

Finding the Fourth Proportional to 81,086.56, 111,899.52 and 45,276.52

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Solution

The fourth proportional to 81,086.56, 111,899.52 and 45,276.52 is: 62,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,086.56 : 111,899.52 = 45,276.52 : x
  2. Step 2: Convert to fraction form
    81,086.56/111,899.52 = 45,276.52/x
  3. Step 3: Cross multiply
    81,086.56x = 111,899.52 × 45,276.52
  4. Step 4: Simplify right side
    81,086.56x = 5,066,420,855.27
  5. Step 5: Solve for x
    x = 5,066,420,855.27/81,086.56
  6. Step 6: Final answer
    x = 62,481.64

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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.