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Finding the Fourth Proportional to 55,197.52, 82,810.12 and 21,906.59

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Solution

The fourth proportional to 55,197.52, 82,810.12 and 21,906.59 is: 32,865.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,197.52 : 82,810.12 = 21,906.59 : x
  2. Step 2: Convert to fraction form
    55,197.52/82,810.12 = 21,906.59/x
  3. Step 3: Cross multiply
    55,197.52x = 82,810.12 × 21,906.59
  4. Step 4: Simplify right side
    55,197.52x = 1,814,087,346.69
  5. Step 5: Solve for x
    x = 1,814,087,346.69/55,197.52
  6. Step 6: Final answer
    x = 32,865.38

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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.