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Finding the Fourth Proportional to 67,879.96, 101,779.02 and 30,433.26

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Solution

The fourth proportional to 67,879.96, 101,779.02 and 30,433.26 is: 45,631.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,879.96 : 101,779.02 = 30,433.26 : x
  2. Step 2: Convert to fraction form
    67,879.96/101,779.02 = 30,433.26/x
  3. Step 3: Cross multiply
    67,879.96x = 101,779.02 × 30,433.26
  4. Step 4: Simplify right side
    67,879.96x = 3,097,467,378.21
  5. Step 5: Solve for x
    x = 3,097,467,378.21/67,879.96
  6. Step 6: Final answer
    x = 45,631.54

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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.