Home / 74,879.03-103,337.26-40,890.69

Finding the Fourth Proportional to 74,879.03, 103,337.26 and 40,890.69

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Solution

The fourth proportional to 74,879.03, 103,337.26 and 40,890.69 is: 56,431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,879.03 : 103,337.26 = 40,890.69 : x
  2. Step 2: Convert to fraction form
    74,879.03/103,337.26 = 40,890.69/x
  3. Step 3: Cross multiply
    74,879.03x = 103,337.26 × 40,890.69
  4. Step 4: Simplify right side
    74,879.03x = 4,225,531,761.88
  5. Step 5: Solve for x
    x = 4,225,531,761.88/74,879.03
  6. Step 6: Final answer
    x = 56,431.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.