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Finding the Fourth Proportional to 81,798.86, 122,701.02 and 22,629.58

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Solution

The fourth proportional to 81,798.86, 122,701.02 and 22,629.58 is: 33,945.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,798.86 : 122,701.02 = 22,629.58 : x
  2. Step 2: Convert to fraction form
    81,798.86/122,701.02 = 22,629.58/x
  3. Step 3: Cross multiply
    81,798.86x = 122,701.02 × 22,629.58
  4. Step 4: Simplify right side
    81,798.86x = 2,776,672,326.28
  5. Step 5: Solve for x
    x = 2,776,672,326.28/81,798.86
  6. Step 6: Final answer
    x = 33,945.12

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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.