Home / 51,515.92-71,081.04-30,287.44

Finding the Fourth Proportional to 51,515.92, 71,081.04 and 30,287.44

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Solution

The fourth proportional to 51,515.92, 71,081.04 and 30,287.44 is: 41,790.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,515.92 : 71,081.04 = 30,287.44 : x
  2. Step 2: Convert to fraction form
    51,515.92/71,081.04 = 30,287.44/x
  3. Step 3: Cross multiply
    51,515.92x = 71,081.04 × 30,287.44
  4. Step 4: Simplify right side
    51,515.92x = 2,152,862,734.14
  5. Step 5: Solve for x
    x = 2,152,862,734.14/51,515.92
  6. Step 6: Final answer
    x = 41,790.24

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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.