Home / 68,778.45-94,907.70-38,556.84

Finding the Fourth Proportional to 68,778.45, 94,907.70 and 38,556.84

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Solution

The fourth proportional to 68,778.45, 94,907.70 and 38,556.84 is: 53,204.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,778.45 : 94,907.70 = 38,556.84 : x
  2. Step 2: Convert to fraction form
    68,778.45/94,907.70 = 38,556.84/x
  3. Step 3: Cross multiply
    68,778.45x = 94,907.70 × 38,556.84
  4. Step 4: Simplify right side
    68,778.45x = 3,659,341,359.57
  5. Step 5: Solve for x
    x = 3,659,341,359.57/68,778.45
  6. Step 6: Final answer
    x = 53,204.77

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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.