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Finding the Fourth Proportional to 89,092.98, 122,901.70 and 55,090.60

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Solution

The fourth proportional to 89,092.98, 122,901.70 and 55,090.60 is: 75,996.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,092.98 : 122,901.70 = 55,090.60 : x
  2. Step 2: Convert to fraction form
    89,092.98/122,901.70 = 55,090.60/x
  3. Step 3: Cross multiply
    89,092.98x = 122,901.70 × 55,090.60
  4. Step 4: Simplify right side
    89,092.98x = 6,770,728,394.02
  5. Step 5: Solve for x
    x = 6,770,728,394.02/89,092.98
  6. Step 6: Final answer
    x = 75,996.21

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1.5x scale

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.