Home / 39,636.36-54,705.11-30,107.79

Finding the Fourth Proportional to 39,636.36, 54,705.11 and 30,107.79

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Solution

The fourth proportional to 39,636.36, 54,705.11 and 30,107.79 is: 41,554.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,636.36 : 54,705.11 = 30,107.79 : x
  2. Step 2: Convert to fraction form
    39,636.36/54,705.11 = 30,107.79/x
  3. Step 3: Cross multiply
    39,636.36x = 54,705.11 × 30,107.79
  4. Step 4: Simplify right side
    39,636.36x = 1,647,049,813.27
  5. Step 5: Solve for x
    x = 1,647,049,813.27/39,636.36
  6. Step 6: Final answer
    x = 41,554.01

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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.