Home / 86,976.73-130,523.55-30,816.64

Finding the Fourth Proportional to 86,976.73, 130,523.55 and 30,816.64

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Solution

The fourth proportional to 86,976.73, 130,523.55 and 30,816.64 is: 46,245.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,976.73 : 130,523.55 = 30,816.64 : x
  2. Step 2: Convert to fraction form
    86,976.73/130,523.55 = 30,816.64/x
  3. Step 3: Cross multiply
    86,976.73x = 130,523.55 × 30,816.64
  4. Step 4: Simplify right side
    86,976.73x = 4,022,297,251.87
  5. Step 5: Solve for x
    x = 4,022,297,251.87/86,976.73
  6. Step 6: Final answer
    x = 46,245.67

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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.