Home / 57,704.30-86,563.20-18,265.40

Finding the Fourth Proportional to 57,704.30, 86,563.20 and 18,265.40

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Solution

The fourth proportional to 57,704.30, 86,563.20 and 18,265.40 is: 27,400.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,704.30 : 86,563.20 = 18,265.40 : x
  2. Step 2: Convert to fraction form
    57,704.30/86,563.20 = 18,265.40/x
  3. Step 3: Cross multiply
    57,704.30x = 86,563.20 × 18,265.40
  4. Step 4: Simplify right side
    57,704.30x = 1,581,111,473.28
  5. Step 5: Solve for x
    x = 1,581,111,473.28/57,704.30
  6. Step 6: Final answer
    x = 27,400.24

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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.