Home / 54,443.03-81,625.93-21,135.02

Finding the Fourth Proportional to 54,443.03, 81,625.93 and 21,135.02

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Solution

The fourth proportional to 54,443.03, 81,625.93 and 21,135.02 is: 31,687.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,443.03 : 81,625.93 = 21,135.02 : x
  2. Step 2: Convert to fraction form
    54,443.03/81,625.93 = 21,135.02/x
  3. Step 3: Cross multiply
    54,443.03x = 81,625.93 × 21,135.02
  4. Step 4: Simplify right side
    54,443.03x = 1,725,165,202.10
  5. Step 5: Solve for x
    x = 1,725,165,202.10/54,443.03
  6. Step 6: Final answer
    x = 31,687.53

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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.