Home / 57,081.60-85,622.40-51,249.60

Finding the Fourth Proportional to 57,081.60, 85,622.40 and 51,249.60

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Solution

The fourth proportional to 57,081.60, 85,622.40 and 51,249.60 is: 76,874.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,081.60 : 85,622.40 = 51,249.60 : x
  2. Step 2: Convert to fraction form
    57,081.60/85,622.40 = 51,249.60/x
  3. Step 3: Cross multiply
    57,081.60x = 85,622.40 × 51,249.60
  4. Step 4: Simplify right side
    57,081.60x = 4,388,113,751.04
  5. Step 5: Solve for x
    x = 4,388,113,751.04/57,081.60
  6. Step 6: Final answer
    x = 76,874.40

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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.