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Finding the Fourth Proportional to 54,353.70, 81,536.13 and 18,814.97

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Solution

The fourth proportional to 54,353.70, 81,536.13 and 18,814.97 is: 28,224.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,353.70 : 81,536.13 = 18,814.97 : x
  2. Step 2: Convert to fraction form
    54,353.70/81,536.13 = 18,814.97/x
  3. Step 3: Cross multiply
    54,353.70x = 81,536.13 × 18,814.97
  4. Step 4: Simplify right side
    54,353.70x = 1,534,099,432.19
  5. Step 5: Solve for x
    x = 1,534,099,432.19/54,353.70
  6. Step 6: Final answer
    x = 28,224.38

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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.