Home / 77,273.39-115,910.09-42,193.91

Finding the Fourth Proportional to 77,273.39, 115,910.09 and 42,193.91

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Solution

The fourth proportional to 77,273.39, 115,910.09 and 42,193.91 is: 63,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,273.39 : 115,910.09 = 42,193.91 : x
  2. Step 2: Convert to fraction form
    77,273.39/115,910.09 = 42,193.91/x
  3. Step 3: Cross multiply
    77,273.39x = 115,910.09 × 42,193.91
  4. Step 4: Simplify right side
    77,273.39x = 4,890,699,115.03
  5. Step 5: Solve for x
    x = 4,890,699,115.03/77,273.39
  6. Step 6: Final answer
    x = 63,290.86

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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.