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Finding the Fourth Proportional to 55,157.01, 82,662.83 and 21,858.92

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Solution

The fourth proportional to 55,157.01, 82,662.83 and 21,858.92 is: 32,759.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,157.01 : 82,662.83 = 21,858.92 : x
  2. Step 2: Convert to fraction form
    55,157.01/82,662.83 = 21,858.92/x
  3. Step 3: Cross multiply
    55,157.01x = 82,662.83 × 21,858.92
  4. Step 4: Simplify right side
    55,157.01x = 1,806,920,187.94
  5. Step 5: Solve for x
    x = 1,806,920,187.94/55,157.01
  6. Step 6: Final answer
    x = 32,759.57

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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.