Home / 54,379.10-81,598.37-21,100.47

Finding the Fourth Proportional to 54,379.10, 81,598.37 and 21,100.47

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Solution

The fourth proportional to 54,379.10, 81,598.37 and 21,100.47 is: 31,662.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,379.10 : 81,598.37 = 21,100.47 : x
  2. Step 2: Convert to fraction form
    54,379.10/81,598.37 = 21,100.47/x
  3. Step 3: Cross multiply
    54,379.10x = 81,598.37 × 21,100.47
  4. Step 4: Simplify right side
    54,379.10x = 1,721,763,852.73
  5. Step 5: Solve for x
    x = 1,721,763,852.73/54,379.10
  6. Step 6: Final answer
    x = 31,662.24

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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.