Home / 76,728.97-105,891.30-46,515.57

Finding the Fourth Proportional to 76,728.97, 105,891.30 and 46,515.57

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Solution

The fourth proportional to 76,728.97, 105,891.30 and 46,515.57 is: 64,194.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,728.97 : 105,891.30 = 46,515.57 : x
  2. Step 2: Convert to fraction form
    76,728.97/105,891.30 = 46,515.57/x
  3. Step 3: Cross multiply
    76,728.97x = 105,891.30 × 46,515.57
  4. Step 4: Simplify right side
    76,728.97x = 4,925,594,177.54
  5. Step 5: Solve for x
    x = 4,925,594,177.54/76,728.97
  6. Step 6: Final answer
    x = 64,194.71

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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.