Home / 78,891.33-118,249.34-60,109.44

Finding the Fourth Proportional to 78,891.33, 118,249.34 and 60,109.44

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Solution

The fourth proportional to 78,891.33, 118,249.34 and 60,109.44 is: 90,097.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,891.33 : 118,249.34 = 60,109.44 : x
  2. Step 2: Convert to fraction form
    78,891.33/118,249.34 = 60,109.44/x
  3. Step 3: Cross multiply
    78,891.33x = 118,249.34 × 60,109.44
  4. Step 4: Simplify right side
    78,891.33x = 7,107,901,607.77
  5. Step 5: Solve for x
    x = 7,107,901,607.77/78,891.33
  6. Step 6: Final answer
    x = 90,097.37

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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.