Finding the Fourth Proportional to 86,173.09, 129,298.08 and 44,030.99
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Solution
The fourth proportional to 86,173.09, 129,298.08 and 44,030.99 is: 66,066.12
Step by Step Solution
- Step 1: Write the proportion equation
86,173.09 : 129,298.08 = 44,030.99 : x - Step 2: Convert to fraction form
86,173.09/129,298.08 = 44,030.99/x - Step 3: Cross multiply
86,173.09x = 129,298.08 × 44,030.99 - Step 4: Simplify right side
86,173.09x = 5,693,121,600.85 - Step 5: Solve for x
x = 5,693,121,600.85/86,173.09 - Step 6: Final answer
x = 66,066.12
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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.