Home / 61,209.12-91,736.96-26,107.68

Finding the Fourth Proportional to 61,209.12, 91,736.96 and 26,107.68

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Solution

The fourth proportional to 61,209.12, 91,736.96 and 26,107.68 is: 39,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,209.12 : 91,736.96 = 26,107.68 : x
  2. Step 2: Convert to fraction form
    61,209.12/91,736.96 = 26,107.68/x
  3. Step 3: Cross multiply
    61,209.12x = 91,736.96 × 26,107.68
  4. Step 4: Simplify right side
    61,209.12x = 2,395,039,195.85
  5. Step 5: Solve for x
    x = 2,395,039,195.85/61,209.12
  6. Step 6: Final answer
    x = 39,128.80

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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.