Home / 85,836.78-118,453.41-47,074.50

Finding the Fourth Proportional to 85,836.78, 118,453.41 and 47,074.50

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Solution

The fourth proportional to 85,836.78, 118,453.41 and 47,074.50 is: 64,962.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,836.78 : 118,453.41 = 47,074.50 : x
  2. Step 2: Convert to fraction form
    85,836.78/118,453.41 = 47,074.50/x
  3. Step 3: Cross multiply
    85,836.78x = 118,453.41 × 47,074.50
  4. Step 4: Simplify right side
    85,836.78x = 5,576,135,049.05
  5. Step 5: Solve for x
    x = 5,576,135,049.05/85,836.78
  6. Step 6: Final answer
    x = 64,962.07

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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.