Finding the Fourth Proportional to 86,190.21, 129,260.21 and 33,587.19
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Solution
The fourth proportional to 86,190.21, 129,260.21 and 33,587.19 is: 50,371.00
Step by Step Solution
- Step 1: Write the proportion equation
86,190.21 : 129,260.21 = 33,587.19 : x - Step 2: Convert to fraction form
86,190.21/129,260.21 = 33,587.19/x - Step 3: Cross multiply
86,190.21x = 129,260.21 × 33,587.19 - Step 4: Simplify right side
86,190.21x = 4,341,487,064.77 - Step 5: Solve for x
x = 4,341,487,064.77/86,190.21 - Step 6: Final answer
x = 50,371.00
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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.