Home / 57,540.20-86,310.30-18,109.40

Finding the Fourth Proportional to 57,540.20, 86,310.30 and 18,109.40

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Solution

The fourth proportional to 57,540.20, 86,310.30 and 18,109.40 is: 27,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,540.20 : 86,310.30 = 18,109.40 : x
  2. Step 2: Convert to fraction form
    57,540.20/86,310.30 = 18,109.40/x
  3. Step 3: Cross multiply
    57,540.20x = 86,310.30 × 18,109.40
  4. Step 4: Simplify right side
    57,540.20x = 1,563,027,746.82
  5. Step 5: Solve for x
    x = 1,563,027,746.82/57,540.20
  6. Step 6: Final answer
    x = 27,164.10

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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.