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Finding the Fourth Proportional to 54,986.50, 75,881.37 and 29,836

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Solution

The fourth proportional to 54,986.50, 75,881.37 and 29,836 is: 41,173.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,986.50 : 75,881.37 = 29,836 : x
  2. Step 2: Convert to fraction form
    54,986.50/75,881.37 = 29,836/x
  3. Step 3: Cross multiply
    54,986.50x = 75,881.37 × 29,836
  4. Step 4: Simplify right side
    54,986.50x = 2,263,996,555.32
  5. Step 5: Solve for x
    x = 2,263,996,555.32/54,986.50
  6. Step 6: Final answer
    x = 41,173.68

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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.