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Finding the Fourth Proportional to 55,230.84, 82,858.56 and 20,170.44

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Solution

The fourth proportional to 55,230.84, 82,858.56 and 20,170.44 is: 30,260.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,230.84 : 82,858.56 = 20,170.44 : x
  2. Step 2: Convert to fraction form
    55,230.84/82,858.56 = 20,170.44/x
  3. Step 3: Cross multiply
    55,230.84x = 82,858.56 × 20,170.44
  4. Step 4: Simplify right side
    55,230.84x = 1,671,293,612.97
  5. Step 5: Solve for x
    x = 1,671,293,612.97/55,230.84
  6. Step 6: Final answer
    x = 30,260.15

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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.