Finding the Fourth Proportional to 85,711.87, 128,588.33 and 35,764.26
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Solution
The fourth proportional to 85,711.87, 128,588.33 and 35,764.26 is: 53,654.95
Step by Step Solution
- Step 1: Write the proportion equation
85,711.87 : 128,588.33 = 35,764.26 : x - Step 2: Convert to fraction form
85,711.87/128,588.33 = 35,764.26/x - Step 3: Cross multiply
85,711.87x = 128,588.33 × 35,764.26 - Step 4: Simplify right side
85,711.87x = 4,598,866,467.09 - Step 5: Solve for x
x = 4,598,866,467.09/85,711.87 - Step 6: Final answer
x = 53,654.95
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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.