Home / 57,586.11-86,391.46-20,147.40

Finding the Fourth Proportional to 57,586.11, 86,391.46 and 20,147.40

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Solution

The fourth proportional to 57,586.11, 86,391.46 and 20,147.40 is: 30,225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,586.11 : 86,391.46 = 20,147.40 : x
  2. Step 2: Convert to fraction form
    57,586.11/86,391.46 = 20,147.40/x
  3. Step 3: Cross multiply
    57,586.11x = 86,391.46 × 20,147.40
  4. Step 4: Simplify right side
    57,586.11x = 1,740,563,301.20
  5. Step 5: Solve for x
    x = 1,740,563,301.20/57,586.11
  6. Step 6: Final answer
    x = 30,225.40

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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.