Home / 81,778.26-122,667.38-26,374.26

Finding the Fourth Proportional to 81,778.26, 122,667.38 and 26,374.26

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Solution

The fourth proportional to 81,778.26, 122,667.38 and 26,374.26 is: 39,561.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,778.26 : 122,667.38 = 26,374.26 : x
  2. Step 2: Convert to fraction form
    81,778.26/122,667.38 = 26,374.26/x
  3. Step 3: Cross multiply
    81,778.26x = 122,667.38 × 26,374.26
  4. Step 4: Simplify right side
    81,778.26x = 3,235,261,373.64
  5. Step 5: Solve for x
    x = 3,235,261,373.64/81,778.26
  6. Step 6: Final answer
    x = 39,561.39

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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.