Home / 57,081.20-85,600.50-19,630.67

Finding the Fourth Proportional to 57,081.20, 85,600.50 and 19,630.67

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Solution

The fourth proportional to 57,081.20, 85,600.50 and 19,630.67 is: 29,438.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,081.20 : 85,600.50 = 19,630.67 : x
  2. Step 2: Convert to fraction form
    57,081.20/85,600.50 = 19,630.67/x
  3. Step 3: Cross multiply
    57,081.20x = 85,600.50 × 19,630.67
  4. Step 4: Simplify right side
    57,081.20x = 1,680,394,739.33
  5. Step 5: Solve for x
    x = 1,680,394,739.33/57,081.20
  6. Step 6: Final answer
    x = 29,438.67

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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.