Home / 77,568.05-116,358.78-21,408.17

Finding the Fourth Proportional to 77,568.05, 116,358.78 and 21,408.17

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Solution

The fourth proportional to 77,568.05, 116,358.78 and 21,408.17 is: 32,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,568.05 : 116,358.78 = 21,408.17 : x
  2. Step 2: Convert to fraction form
    77,568.05/116,358.78 = 21,408.17/x
  3. Step 3: Cross multiply
    77,568.05x = 116,358.78 × 21,408.17
  4. Step 4: Simplify right side
    77,568.05x = 2,491,027,961.44
  5. Step 5: Solve for x
    x = 2,491,027,961.44/77,568.05
  6. Step 6: Final answer
    x = 32,114.10

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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.