Home / 96,819.78-133,611.83-54,378.32

Finding the Fourth Proportional to 96,819.78, 133,611.83 and 54,378.32

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Solution

The fourth proportional to 96,819.78, 133,611.83 and 54,378.32 is: 75,042.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,819.78 : 133,611.83 = 54,378.32 : x
  2. Step 2: Convert to fraction form
    96,819.78/133,611.83 = 54,378.32/x
  3. Step 3: Cross multiply
    96,819.78x = 133,611.83 × 54,378.32
  4. Step 4: Simplify right side
    96,819.78x = 7,265,585,907.57
  5. Step 5: Solve for x
    x = 7,265,585,907.57/96,819.78
  6. Step 6: Final answer
    x = 75,042.37

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1.5x scale

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.