Home / 73,143.30-109,723.75-25,748.55

Finding the Fourth Proportional to 73,143.30, 109,723.75 and 25,748.55

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Solution

The fourth proportional to 73,143.30, 109,723.75 and 25,748.55 is: 38,625.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,143.30 : 109,723.75 = 25,748.55 : x
  2. Step 2: Convert to fraction form
    73,143.30/109,723.75 = 25,748.55/x
  3. Step 3: Cross multiply
    73,143.30x = 109,723.75 × 25,748.55
  4. Step 4: Simplify right side
    73,143.30x = 2,825,227,463.06
  5. Step 5: Solve for x
    x = 2,825,227,463.06/73,143.30
  6. Step 6: Final answer
    x = 38,625.92

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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.