Home / 57,971.12-86,791.20-38,189.12

Finding the Fourth Proportional to 57,971.12, 86,791.20 and 38,189.12

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Solution

The fourth proportional to 57,971.12, 86,791.20 and 38,189.12 is: 57,174.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,971.12 : 86,791.20 = 38,189.12 : x
  2. Step 2: Convert to fraction form
    57,971.12/86,791.20 = 38,189.12/x
  3. Step 3: Cross multiply
    57,971.12x = 86,791.20 × 38,189.12
  4. Step 4: Simplify right side
    57,971.12x = 3,314,479,551.74
  5. Step 5: Solve for x
    x = 3,314,479,551.74/57,971.12
  6. Step 6: Final answer
    x = 57,174.67

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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.