Home / 51,541.92-71,121.21-30,313.44

Finding the Fourth Proportional to 51,541.92, 71,121.21 and 30,313.44

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Solution

The fourth proportional to 51,541.92, 71,121.21 and 30,313.44 is: 41,828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,541.92 : 71,121.21 = 30,313.44 : x
  2. Step 2: Convert to fraction form
    51,541.92/71,121.21 = 30,313.44/x
  3. Step 3: Cross multiply
    51,541.92x = 71,121.21 × 30,313.44
  4. Step 4: Simplify right side
    51,541.92x = 2,155,928,532.06
  5. Step 5: Solve for x
    x = 2,155,928,532.06/51,541.92
  6. Step 6: Final answer
    x = 41,828.64

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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.