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Finding the Fourth Proportional to 77,344.70, 115,906.35 and 43,994.30

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Solution

The fourth proportional to 77,344.70, 115,906.35 and 43,994.30 is: 65,928.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,344.70 : 115,906.35 = 43,994.30 : x
  2. Step 2: Convert to fraction form
    77,344.70/115,906.35 = 43,994.30/x
  3. Step 3: Cross multiply
    77,344.70x = 115,906.35 × 43,994.30
  4. Step 4: Simplify right side
    77,344.70x = 5,099,218,733.81
  5. Step 5: Solve for x
    x = 5,099,218,733.81/77,344.70
  6. Step 6: Final answer
    x = 65,928.48

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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.