Home / 90,998.73-125,544.11-55,175.67

Finding the Fourth Proportional to 90,998.73, 125,544.11 and 55,175.67

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Solution

The fourth proportional to 90,998.73, 125,544.11 and 55,175.67 is: 76,121.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,998.73 : 125,544.11 = 55,175.67 : x
  2. Step 2: Convert to fraction form
    90,998.73/125,544.11 = 55,175.67/x
  3. Step 3: Cross multiply
    90,998.73x = 125,544.11 × 55,175.67
  4. Step 4: Simplify right side
    90,998.73x = 6,926,980,107.93
  5. Step 5: Solve for x
    x = 6,926,980,107.93/90,998.73
  6. Step 6: Final answer
    x = 76,121.72

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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.