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Finding the Fourth Proportional to 77,379.60, 116,112.60 and 32,998.80

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Solution

The fourth proportional to 77,379.60, 116,112.60 and 32,998.80 is: 49,516.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,379.60 : 116,112.60 = 32,998.80 : x
  2. Step 2: Convert to fraction form
    77,379.60/116,112.60 = 32,998.80/x
  3. Step 3: Cross multiply
    77,379.60x = 116,112.60 × 32,998.80
  4. Step 4: Simplify right side
    77,379.60x = 3,831,576,464.88
  5. Step 5: Solve for x
    x = 3,831,576,464.88/77,379.60
  6. Step 6: Final answer
    x = 49,516.62

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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.