Home / 90,665.54-125,121.27-49,828.93

Finding the Fourth Proportional to 90,665.54, 125,121.27 and 49,828.93

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Solution

The fourth proportional to 90,665.54, 125,121.27 and 49,828.93 is: 68,765.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,665.54 : 125,121.27 = 49,828.93 : x
  2. Step 2: Convert to fraction form
    90,665.54/125,121.27 = 49,828.93/x
  3. Step 3: Cross multiply
    90,665.54x = 125,121.27 × 49,828.93
  4. Step 4: Simplify right side
    90,665.54x = 6,234,658,504.68
  5. Step 5: Solve for x
    x = 6,234,658,504.68/90,665.54
  6. Step 6: Final answer
    x = 68,765.47

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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.