Finding the Fourth Proportional to 86,538.80, 129,812.93 and 27,370.06
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Solution
The fourth proportional to 86,538.80, 129,812.93 and 27,370.06 is: 41,056.58
Step by Step Solution
- Step 1: Write the proportion equation
86,538.80 : 129,812.93 = 27,370.06 : x - Step 2: Convert to fraction form
86,538.80/129,812.93 = 27,370.06/x - Step 3: Cross multiply
86,538.80x = 129,812.93 × 27,370.06 - Step 4: Simplify right side
86,538.80x = 3,552,987,324.13 - Step 5: Solve for x
x = 3,552,987,324.13/86,538.80 - Step 6: Final answer
x = 41,056.58
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.