Finding the Fourth Proportional to 84,852.11, 117,092.66 and 47,128.79
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Solution
The fourth proportional to 84,852.11, 117,092.66 and 47,128.79 is: 65,035.92
Step by Step Solution
- Step 1: Write the proportion equation
84,852.11 : 117,092.66 = 47,128.79 : x - Step 2: Convert to fraction form
84,852.11/117,092.66 = 47,128.79/x - Step 3: Cross multiply
84,852.11x = 117,092.66 × 47,128.79 - Step 4: Simplify right side
84,852.11x = 5,518,434,562.57 - Step 5: Solve for x
x = 5,518,434,562.57/84,852.11 - Step 6: Final answer
x = 65,035.92
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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.