Home / 51,621.57-71,229.11-30,405.02

Finding the Fourth Proportional to 51,621.57, 71,229.11 and 30,405.02

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Solution

The fourth proportional to 51,621.57, 71,229.11 and 30,405.02 is: 41,953.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,621.57 : 71,229.11 = 30,405.02 : x
  2. Step 2: Convert to fraction form
    51,621.57/71,229.11 = 30,405.02/x
  3. Step 3: Cross multiply
    51,621.57x = 71,229.11 × 30,405.02
  4. Step 4: Simplify right side
    51,621.57x = 2,165,722,005.96
  5. Step 5: Solve for x
    x = 2,165,722,005.96/51,621.57
  6. Step 6: Final answer
    x = 41,953.82

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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.