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Finding the Fourth Proportional to 55,285.98, 82,879.87 and 21,544.18

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Solution

The fourth proportional to 55,285.98, 82,879.87 and 21,544.18 is: 32,297.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,285.98 : 82,879.87 = 21,544.18 : x
  2. Step 2: Convert to fraction form
    55,285.98/82,879.87 = 21,544.18/x
  3. Step 3: Cross multiply
    55,285.98x = 82,879.87 × 21,544.18
  4. Step 4: Simplify right side
    55,285.98x = 1,785,579,112.18
  5. Step 5: Solve for x
    x = 1,785,579,112.18/55,285.98
  6. Step 6: Final answer
    x = 32,297.14

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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.