Home / 54,043.48-74,558.82-31,378.60

Finding the Fourth Proportional to 54,043.48, 74,558.82 and 31,378.60

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Solution

The fourth proportional to 54,043.48, 74,558.82 and 31,378.60 is: 43,290.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,043.48 : 74,558.82 = 31,378.60 : x
  2. Step 2: Convert to fraction form
    54,043.48/74,558.82 = 31,378.60/x
  3. Step 3: Cross multiply
    54,043.48x = 74,558.82 × 31,378.60
  4. Step 4: Simplify right side
    54,043.48x = 2,339,551,389.25
  5. Step 5: Solve for x
    x = 2,339,551,389.25/54,043.48
  6. Step 6: Final answer
    x = 43,290.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.