Finding the Fourth Proportional to 86,020.11, 118,717.29 and 50,218.92
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Solution
The fourth proportional to 86,020.11, 118,717.29 and 50,218.92 is: 69,307.68
Step by Step Solution
- Step 1: Write the proportion equation
86,020.11 : 118,717.29 = 50,218.92 : x - Step 2: Convert to fraction form
86,020.11/118,717.29 = 50,218.92/x - Step 3: Cross multiply
86,020.11x = 118,717.29 × 50,218.92 - Step 4: Simplify right side
86,020.11x = 5,961,854,089.13 - Step 5: Solve for x
x = 5,961,854,089.13/86,020.11 - Step 6: Final answer
x = 69,307.68
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1.5x scale
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.