Finding the Fourth Proportional to 84,762.98, 116,971.68 and 48,464.06
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Solution
The fourth proportional to 84,762.98, 116,971.68 and 48,464.06 is: 66,879.70
Step by Step Solution
- Step 1: Write the proportion equation
84,762.98 : 116,971.68 = 48,464.06 : x - Step 2: Convert to fraction form
84,762.98/116,971.68 = 48,464.06/x - Step 3: Cross multiply
84,762.98x = 116,971.68 × 48,464.06 - Step 4: Simplify right side
84,762.98x = 5,668,922,517.82 - Step 5: Solve for x
x = 5,668,922,517.82/84,762.98 - Step 6: Final answer
x = 66,879.70
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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.