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Finding the Fourth Proportional to 77,227.96, 115,653.21 and 69,748.42

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Solution

The fourth proportional to 77,227.96, 115,653.21 and 69,748.42 is: 104,452.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,227.96 : 115,653.21 = 69,748.42 : x
  2. Step 2: Convert to fraction form
    77,227.96/115,653.21 = 69,748.42/x
  3. Step 3: Cross multiply
    77,227.96x = 115,653.21 × 69,748.42
  4. Step 4: Simplify right side
    77,227.96x = 8,066,628,665.43
  5. Step 5: Solve for x
    x = 8,066,628,665.43/77,227.96
  6. Step 6: Final answer
    x = 104,452.18

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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.