Home / 50,928.64-76,396.64-21,316.68

Finding the Fourth Proportional to 50,928.64, 76,396.64 and 21,316.68

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Solution

The fourth proportional to 50,928.64, 76,396.64 and 21,316.68 is: 31,976.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,928.64 : 76,396.64 = 21,316.68 : x
  2. Step 2: Convert to fraction form
    50,928.64/76,396.64 = 21,316.68/x
  3. Step 3: Cross multiply
    50,928.64x = 76,396.64 × 21,316.68
  4. Step 4: Simplify right side
    50,928.64x = 1,628,522,727.96
  5. Step 5: Solve for x
    x = 1,628,522,727.96/50,928.64
  6. Step 6: Final answer
    x = 31,976.56

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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.