Home / 68,195.46-102,293.21-20,810.81

Finding the Fourth Proportional to 68,195.46, 102,293.21 and 20,810.81

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Solution

The fourth proportional to 68,195.46, 102,293.21 and 20,810.81 is: 31,216.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,195.46 : 102,293.21 = 20,810.81 : x
  2. Step 2: Convert to fraction form
    68,195.46/102,293.21 = 20,810.81/x
  3. Step 3: Cross multiply
    68,195.46x = 102,293.21 × 20,810.81
  4. Step 4: Simplify right side
    68,195.46x = 2,128,804,865.36
  5. Step 5: Solve for x
    x = 2,128,804,865.36/68,195.46
  6. Step 6: Final answer
    x = 31,216.22

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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.