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Finding the Fourth Proportional to 91,026.78, 125,670.78 and 80,927.27

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Solution

The fourth proportional to 91,026.78, 125,670.78 and 80,927.27 is: 111,727.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,026.78 : 125,670.78 = 80,927.27 : x
  2. Step 2: Convert to fraction form
    91,026.78/125,670.78 = 80,927.27/x
  3. Step 3: Cross multiply
    91,026.78x = 125,670.78 × 80,927.27
  4. Step 4: Simplify right side
    91,026.78x = 10,170,193,458.35
  5. Step 5: Solve for x
    x = 10,170,193,458.35/91,026.78
  6. Step 6: Final answer
    x = 111,727.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.