Home / 78,379.43-117,539.06-33,372.26

Finding the Fourth Proportional to 78,379.43, 117,539.06 and 33,372.26

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Solution

The fourth proportional to 78,379.43, 117,539.06 and 33,372.26 is: 50,045.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,379.43 : 117,539.06 = 33,372.26 : x
  2. Step 2: Convert to fraction form
    78,379.43/117,539.06 = 33,372.26/x
  3. Step 3: Cross multiply
    78,379.43x = 117,539.06 × 33,372.26
  4. Step 4: Simplify right side
    78,379.43x = 3,922,543,482.78
  5. Step 5: Solve for x
    x = 3,922,543,482.78/78,379.43
  6. Step 6: Final answer
    x = 50,045.57

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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.