Home / 89,940.87-124,122.56-49,660.35

Finding the Fourth Proportional to 89,940.87, 124,122.56 and 49,660.35

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Solution

The fourth proportional to 89,940.87, 124,122.56 and 49,660.35 is: 68,533.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,940.87 : 124,122.56 = 49,660.35 : x
  2. Step 2: Convert to fraction form
    89,940.87/124,122.56 = 49,660.35/x
  3. Step 3: Cross multiply
    89,940.87x = 124,122.56 × 49,660.35
  4. Step 4: Simplify right side
    89,940.87x = 6,163,969,524.19
  5. Step 5: Solve for x
    x = 6,163,969,524.19/89,940.87
  6. Step 6: Final answer
    x = 68,533.58

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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.