Finding the Fourth Proportional to 84,902.12, 117,159.78 and 47,175.08
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Solution
The fourth proportional to 84,902.12, 117,159.78 and 47,175.08 is: 65,098.75
Step by Step Solution
- Step 1: Write the proportion equation
84,902.12 : 117,159.78 = 47,175.08 : x - Step 2: Convert to fraction form
84,902.12/117,159.78 = 47,175.08/x - Step 3: Cross multiply
84,902.12x = 117,159.78 × 47,175.08 - Step 4: Simplify right side
84,902.12x = 5,527,021,994.28 - Step 5: Solve for x
x = 5,527,021,994.28/84,902.12 - Step 6: Final answer
x = 65,098.75
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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.