Home / 85,235.78-117,611.60-49,418.84

Finding the Fourth Proportional to 85,235.78, 117,611.60 and 49,418.84

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Solution

The fourth proportional to 85,235.78, 117,611.60 and 49,418.84 is: 68,190.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,235.78 : 117,611.60 = 49,418.84 : x
  2. Step 2: Convert to fraction form
    85,235.78/117,611.60 = 49,418.84/x
  3. Step 3: Cross multiply
    85,235.78x = 117,611.60 × 49,418.84
  4. Step 4: Simplify right side
    85,235.78x = 5,812,228,842.54
  5. Step 5: Solve for x
    x = 5,812,228,842.54/85,235.78
  6. Step 6: Final answer
    x = 68,190.01

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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.