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Finding the Fourth Proportional to 55,194.70, 82,792.32 and 20,134.30

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Solution

The fourth proportional to 55,194.70, 82,792.32 and 20,134.30 is: 30,201.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,194.70 : 82,792.32 = 20,134.30 : x
  2. Step 2: Convert to fraction form
    55,194.70/82,792.32 = 20,134.30/x
  3. Step 3: Cross multiply
    55,194.70x = 82,792.32 × 20,134.30
  4. Step 4: Simplify right side
    55,194.70x = 1,666,965,408.58
  5. Step 5: Solve for x
    x = 1,666,965,408.58/55,194.70
  6. Step 6: Final answer
    x = 30,201.55

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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.