Home / 55,291.10-82,927.05-20,212.70

Finding the Fourth Proportional to 55,291.10, 82,927.05 and 20,212.70

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Solution

The fourth proportional to 55,291.10, 82,927.05 and 20,212.70 is: 30,315.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,291.10 : 82,927.05 = 20,212.70 : x
  2. Step 2: Convert to fraction form
    55,291.10/82,927.05 = 20,212.70/x
  3. Step 3: Cross multiply
    55,291.10x = 82,927.05 × 20,212.70
  4. Step 4: Simplify right side
    55,291.10x = 1,676,179,583.54
  5. Step 5: Solve for x
    x = 1,676,179,583.54/55,291.10
  6. Step 6: Final answer
    x = 30,315.54

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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.