Home / 55,271.50-76,275.21-30,121.54

Finding the Fourth Proportional to 55,271.50, 76,275.21 and 30,121.54

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Solution

The fourth proportional to 55,271.50, 76,275.21 and 30,121.54 is: 41,568.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,271.50 : 76,275.21 = 30,121.54 : x
  2. Step 2: Convert to fraction form
    55,271.50/76,275.21 = 30,121.54/x
  3. Step 3: Cross multiply
    55,271.50x = 76,275.21 × 30,121.54
  4. Step 4: Simplify right side
    55,271.50x = 2,297,526,789.02
  5. Step 5: Solve for x
    x = 2,297,526,789.02/55,271.50
  6. Step 6: Final answer
    x = 41,568.02

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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.