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Finding the Fourth Proportional to 55,274.67, 82,912.01 and 20,195.19

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Solution

The fourth proportional to 55,274.67, 82,912.01 and 20,195.19 is: 30,292.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,274.67 : 82,912.01 = 20,195.19 : x
  2. Step 2: Convert to fraction form
    55,274.67/82,912.01 = 20,195.19/x
  3. Step 3: Cross multiply
    55,274.67x = 82,912.01 × 20,195.19
  4. Step 4: Simplify right side
    55,274.67x = 1,674,423,694.26
  5. Step 5: Solve for x
    x = 1,674,423,694.26/55,274.67
  6. Step 6: Final answer
    x = 30,292.79

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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.