Finding the Fourth Proportional to 84,837.81, 117,071.60 and 48,539.96
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Solution
The fourth proportional to 84,837.81, 117,071.60 and 48,539.96 is: 66,982.53
Step by Step Solution
- Step 1: Write the proportion equation
84,837.81 : 117,071.60 = 48,539.96 : x - Step 2: Convert to fraction form
84,837.81/117,071.60 = 48,539.96/x - Step 3: Cross multiply
84,837.81x = 117,071.60 × 48,539.96 - Step 4: Simplify right side
84,837.81x = 5,682,650,801.65 - Step 5: Solve for x
x = 5,682,650,801.65/84,837.81 - Step 6: Final answer
x = 66,982.53
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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.