Finding the Fourth Proportional to 85,579.70, 128,260.20 and 41,110.70
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Solution
The fourth proportional to 85,579.70, 128,260.20 and 41,110.70 is: 61,613.52
Step by Step Solution
- Step 1: Write the proportion equation
85,579.70 : 128,260.20 = 41,110.70 : x - Step 2: Convert to fraction form
85,579.70/128,260.20 = 41,110.70/x - Step 3: Cross multiply
85,579.70x = 128,260.20 × 41,110.70 - Step 4: Simplify right side
85,579.70x = 5,272,866,604.14 - Step 5: Solve for x
x = 5,272,866,604.14/85,579.70 - Step 6: Final answer
x = 61,613.52
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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.