Finding the Fourth Proportional to 86,461.62, 129,579.42 and 44,305.98
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Solution
The fourth proportional to 86,461.62, 129,579.42 and 44,305.98 is: 66,401.06
Step by Step Solution
- Step 1: Write the proportion equation
86,461.62 : 129,579.42 = 44,305.98 : x - Step 2: Convert to fraction form
86,461.62/129,579.42 = 44,305.98/x - Step 3: Cross multiply
86,461.62x = 129,579.42 × 44,305.98 - Step 4: Simplify right side
86,461.62x = 5,741,143,190.93 - Step 5: Solve for x
x = 5,741,143,190.93/86,461.62 - Step 6: Final answer
x = 66,401.06
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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.