Finding the Fourth Proportional to 84,972.36, 117,257.04 and 47,245.80
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Solution
The fourth proportional to 84,972.36, 117,257.04 and 47,245.80 is: 65,196.53
Step by Step Solution
- Step 1: Write the proportion equation
84,972.36 : 117,257.04 = 47,245.80 : x - Step 2: Convert to fraction form
84,972.36/117,257.04 = 47,245.80/x - Step 3: Cross multiply
84,972.36x = 117,257.04 × 47,245.80 - Step 4: Simplify right side
84,972.36x = 5,539,902,660.43 - Step 5: Solve for x
x = 5,539,902,660.43/84,972.36 - Step 6: Final answer
x = 65,196.53
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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.