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Finding the Fourth Proportional to 55,019.25, 82,529.01 and 19,958.94

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Solution

The fourth proportional to 55,019.25, 82,529.01 and 19,958.94 is: 29,938.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,019.25 : 82,529.01 = 19,958.94 : x
  2. Step 2: Convert to fraction form
    55,019.25/82,529.01 = 19,958.94/x
  3. Step 3: Cross multiply
    55,019.25x = 82,529.01 × 19,958.94
  4. Step 4: Simplify right side
    55,019.25x = 1,647,191,558.85
  5. Step 5: Solve for x
    x = 1,647,191,558.85/55,019.25
  6. Step 6: Final answer
    x = 29,938.46

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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.