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Finding the Fourth Proportional to 77,226.96, 115,651.71 and 69,747.42

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Solution

The fourth proportional to 77,226.96, 115,651.71 and 69,747.42 is: 104,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,226.96 : 115,651.71 = 69,747.42 : x
  2. Step 2: Convert to fraction form
    77,226.96/115,651.71 = 69,747.42/x
  3. Step 3: Cross multiply
    77,226.96x = 115,651.71 × 69,747.42
  4. Step 4: Simplify right side
    77,226.96x = 8,066,408,391.09
  5. Step 5: Solve for x
    x = 8,066,408,391.09/77,226.96
  6. Step 6: Final answer
    x = 104,450.68

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1.5x scale

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.