Home / 39,690.19-54,775.20-26,238.12

Finding the Fourth Proportional to 39,690.19, 54,775.20 and 26,238.12

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Solution

The fourth proportional to 39,690.19, 54,775.20 and 26,238.12 is: 36,210.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,690.19 : 54,775.20 = 26,238.12 : x
  2. Step 2: Convert to fraction form
    39,690.19/54,775.20 = 26,238.12/x
  3. Step 3: Cross multiply
    39,690.19x = 54,775.20 × 26,238.12
  4. Step 4: Simplify right side
    39,690.19x = 1,437,198,270.62
  5. Step 5: Solve for x
    x = 1,437,198,270.62/39,690.19
  6. Step 6: Final answer
    x = 36,210.42

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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.