Home / 57,183.87-78,913.94-31,690.67

Finding the Fourth Proportional to 57,183.87, 78,913.94 and 31,690.67

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Solution

The fourth proportional to 57,183.87, 78,913.94 and 31,690.67 is: 43,733.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,183.87 : 78,913.94 = 31,690.67 : x
  2. Step 2: Convert to fraction form
    57,183.87/78,913.94 = 31,690.67/x
  3. Step 3: Cross multiply
    57,183.87x = 78,913.94 × 31,690.67
  4. Step 4: Simplify right side
    57,183.87x = 2,500,835,630.94
  5. Step 5: Solve for x
    x = 2,500,835,630.94/57,183.87
  6. Step 6: Final answer
    x = 43,733.24

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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.