Home / 89,940.12-124,121.52-49,659.60

Finding the Fourth Proportional to 89,940.12, 124,121.52 and 49,659.60

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Solution

The fourth proportional to 89,940.12, 124,121.52 and 49,659.60 is: 68,532.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,940.12 : 124,121.52 = 49,659.60 : x
  2. Step 2: Convert to fraction form
    89,940.12/124,121.52 = 49,659.60/x
  3. Step 3: Cross multiply
    89,940.12x = 124,121.52 × 49,659.60
  4. Step 4: Simplify right side
    89,940.12x = 6,163,825,034.59
  5. Step 5: Solve for x
    x = 6,163,825,034.59/89,940.12
  6. Step 6: Final answer
    x = 68,532.54

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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.