Home / 76,074.36-114,121.92-31,690.73

Finding the Fourth Proportional to 76,074.36, 114,121.92 and 31,690.73

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Solution

The fourth proportional to 76,074.36, 114,121.92 and 31,690.73 is: 47,540.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,074.36 : 114,121.92 = 31,690.73 : x
  2. Step 2: Convert to fraction form
    76,074.36/114,121.92 = 31,690.73/x
  3. Step 3: Cross multiply
    76,074.36x = 114,121.92 × 31,690.73
  4. Step 4: Simplify right side
    76,074.36x = 3,616,606,953.80
  5. Step 5: Solve for x
    x = 3,616,606,953.80/76,074.36
  6. Step 6: Final answer
    x = 47,540.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.