Finding the Fourth Proportional to 84,028.36, 125,974.06 and 39,078.08
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Solution
The fourth proportional to 84,028.36, 125,974.06 and 39,078.08 is: 58,585.27
Step by Step Solution
- Step 1: Write the proportion equation
84,028.36 : 125,974.06 = 39,078.08 : x - Step 2: Convert to fraction form
84,028.36/125,974.06 = 39,078.08/x - Step 3: Cross multiply
84,028.36x = 125,974.06 × 39,078.08 - Step 4: Simplify right side
84,028.36x = 4,922,824,394.60 - Step 5: Solve for x
x = 4,922,824,394.60/84,028.36 - Step 6: Final answer
x = 58,585.27
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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.