Finding the Fourth Proportional to 75,643.89, 104,395.01 and 41,658.99
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Solution
The fourth proportional to 75,643.89, 104,395.01 and 41,658.99 is: 57,492.95
Step by Step Solution
- Step 1: Write the proportion equation
75,643.89 : 104,395.01 = 41,658.99 : x - Step 2: Convert to fraction form
75,643.89/104,395.01 = 41,658.99/x - Step 3: Cross multiply
75,643.89x = 104,395.01 × 41,658.99 - Step 4: Simplify right side
75,643.89x = 4,348,990,469.34 - Step 5: Solve for x
x = 4,348,990,469.34/75,643.89 - Step 6: Final answer
x = 57,492.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.