Home / 74,917.03-112,379.86-28,170.31

Finding the Fourth Proportional to 74,917.03, 112,379.86 and 28,170.31

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Solution

The fourth proportional to 74,917.03, 112,379.86 and 28,170.31 is: 42,257.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,917.03 : 112,379.86 = 28,170.31 : x
  2. Step 2: Convert to fraction form
    74,917.03/112,379.86 = 28,170.31/x
  3. Step 3: Cross multiply
    74,917.03x = 112,379.86 × 28,170.31
  4. Step 4: Simplify right side
    74,917.03x = 3,165,775,493.96
  5. Step 5: Solve for x
    x = 3,165,775,493.96/74,917.03
  6. Step 6: Final answer
    x = 42,257.09

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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.