Finding the Fourth Proportional to 85,745.48, 128,586.63 and 29,571.17
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Solution
The fourth proportional to 85,745.48, 128,586.63 and 29,571.17 is: 44,345.86
Step by Step Solution
- Step 1: Write the proportion equation
85,745.48 : 128,586.63 = 29,571.17 : x - Step 2: Convert to fraction form
85,745.48/128,586.63 = 29,571.17/x - Step 3: Cross multiply
85,745.48x = 128,586.63 × 29,571.17 - Step 4: Simplify right side
85,745.48x = 3,802,457,095.46 - Step 5: Solve for x
x = 3,802,457,095.46/85,745.48 - Step 6: Final answer
x = 44,345.86
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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.