Home / 57,680.88-86,536.68-18,238.72

Finding the Fourth Proportional to 57,680.88, 86,536.68 and 18,238.72

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Solution

The fourth proportional to 57,680.88, 86,536.68 and 18,238.72 is: 27,362.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,680.88 : 86,536.68 = 18,238.72 : x
  2. Step 2: Convert to fraction form
    57,680.88/86,536.68 = 18,238.72/x
  3. Step 3: Cross multiply
    57,680.88x = 86,536.68 × 18,238.72
  4. Step 4: Simplify right side
    57,680.88x = 1,578,318,276.25
  5. Step 5: Solve for x
    x = 1,578,318,276.25/57,680.88
  6. Step 6: Final answer
    x = 27,362.94

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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.