Home / 54,754.63-82,100.50-21,435.68

Finding the Fourth Proportional to 54,754.63, 82,100.50 and 21,435.68

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Solution

The fourth proportional to 54,754.63, 82,100.50 and 21,435.68 is: 32,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,754.63 : 82,100.50 = 21,435.68 : x
  2. Step 2: Convert to fraction form
    54,754.63/82,100.50 = 21,435.68/x
  3. Step 3: Cross multiply
    54,754.63x = 82,100.50 × 21,435.68
  4. Step 4: Simplify right side
    54,754.63x = 1,759,880,197.50
  5. Step 5: Solve for x
    x = 1,759,880,197.50/54,754.63
  6. Step 6: Final answer
    x = 32,141.21

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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.