Home / 90,981.56-125,552.87-50,694.46

Finding the Fourth Proportional to 90,981.56, 125,552.87 and 50,694.46

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Solution

The fourth proportional to 90,981.56, 125,552.87 and 50,694.46 is: 69,957.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,981.56 : 125,552.87 = 50,694.46 : x
  2. Step 2: Convert to fraction form
    90,981.56/125,552.87 = 50,694.46/x
  3. Step 3: Cross multiply
    90,981.56x = 125,552.87 × 50,694.46
  4. Step 4: Simplify right side
    90,981.56x = 6,364,834,568.85
  5. Step 5: Solve for x
    x = 6,364,834,568.85/90,981.56
  6. Step 6: Final answer
    x = 69,957.41

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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.