Home / 53,814.69-80,722.07-18,729.75

Finding the Fourth Proportional to 53,814.69, 80,722.07 and 18,729.75

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Solution

The fourth proportional to 53,814.69, 80,722.07 and 18,729.75 is: 28,094.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,814.69 : 80,722.07 = 18,729.75 : x
  2. Step 2: Convert to fraction form
    53,814.69/80,722.07 = 18,729.75/x
  3. Step 3: Cross multiply
    53,814.69x = 80,722.07 × 18,729.75
  4. Step 4: Simplify right side
    53,814.69x = 1,511,904,096.93
  5. Step 5: Solve for x
    x = 1,511,904,096.93/53,814.69
  6. Step 6: Final answer
    x = 28,094.64

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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.