Home / 54,786.02-82,129.68-19,701

Finding the Fourth Proportional to 54,786.02, 82,129.68 and 19,701

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Solution

The fourth proportional to 54,786.02, 82,129.68 and 19,701 is: 29,533.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,786.02 : 82,129.68 = 19,701 : x
  2. Step 2: Convert to fraction form
    54,786.02/82,129.68 = 19,701/x
  3. Step 3: Cross multiply
    54,786.02x = 82,129.68 × 19,701
  4. Step 4: Simplify right side
    54,786.02x = 1,618,036,825.68
  5. Step 5: Solve for x
    x = 1,618,036,825.68/54,786.02
  6. Step 6: Final answer
    x = 29,533.75

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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.