Home / 81,098.28-111,909.16-45,286.14

Finding the Fourth Proportional to 81,098.28, 111,909.16 and 45,286.14

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Solution

The fourth proportional to 81,098.28, 111,909.16 and 45,286.14 is: 62,491.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,098.28 : 111,909.16 = 45,286.14 : x
  2. Step 2: Convert to fraction form
    81,098.28/111,909.16 = 45,286.14/x
  3. Step 3: Cross multiply
    81,098.28x = 111,909.16 × 45,286.14
  4. Step 4: Simplify right side
    81,098.28x = 5,067,933,887.04
  5. Step 5: Solve for x
    x = 5,067,933,887.04/81,098.28
  6. Step 6: Final answer
    x = 62,491.26

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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.