Finding the Fourth Proportional to 86,369.93, 129,559.53 and 27,210.23
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Solution
The fourth proportional to 86,369.93, 129,559.53 and 27,210.23 is: 40,816.81
Step by Step Solution
- Step 1: Write the proportion equation
86,369.93 : 129,559.53 = 27,210.23 : x - Step 2: Convert to fraction form
86,369.93/129,559.53 = 27,210.23/x - Step 3: Cross multiply
86,369.93x = 129,559.53 × 27,210.23 - Step 4: Simplify right side
86,369.93x = 3,525,344,550.08 - Step 5: Solve for x
x = 3,525,344,550.08/86,369.93 - Step 6: Final answer
x = 40,816.81
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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.