Home / 75,120.67-103,662.58-41,122.64

Finding the Fourth Proportional to 75,120.67, 103,662.58 and 41,122.64

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Solution

The fourth proportional to 75,120.67, 103,662.58 and 41,122.64 is: 56,747.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,120.67 : 103,662.58 = 41,122.64 : x
  2. Step 2: Convert to fraction form
    75,120.67/103,662.58 = 41,122.64/x
  3. Step 3: Cross multiply
    75,120.67x = 103,662.58 × 41,122.64
  4. Step 4: Simplify right side
    75,120.67x = 4,262,878,958.81
  5. Step 5: Solve for x
    x = 4,262,878,958.81/75,120.67
  6. Step 6: Final answer
    x = 56,747.09

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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.