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Finding the Fourth Proportional to 53,998.70, 81,034.20 and 22,408.79

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Solution

The fourth proportional to 53,998.70, 81,034.20 and 22,408.79 is: 33,628.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,998.70 : 81,034.20 = 22,408.79 : x
  2. Step 2: Convert to fraction form
    53,998.70/81,034.20 = 22,408.79/x
  3. Step 3: Cross multiply
    53,998.70x = 81,034.20 × 22,408.79
  4. Step 4: Simplify right side
    53,998.70x = 1,815,878,370.62
  5. Step 5: Solve for x
    x = 1,815,878,370.62/53,998.70
  6. Step 6: Final answer
    x = 33,628.19

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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.