Home / 39,806.85-59,661.06-20,091.05

Finding the Fourth Proportional to 39,806.85, 59,661.06 and 20,091.05

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Solution

The fourth proportional to 39,806.85, 59,661.06 and 20,091.05 is: 30,111.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,806.85 : 59,661.06 = 20,091.05 : x
  2. Step 2: Convert to fraction form
    39,806.85/59,661.06 = 20,091.05/x
  3. Step 3: Cross multiply
    39,806.85x = 59,661.06 × 20,091.05
  4. Step 4: Simplify right side
    39,806.85x = 1,198,653,339.51
  5. Step 5: Solve for x
    x = 1,198,653,339.51/39,806.85
  6. Step 6: Final answer
    x = 30,111.74

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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.