Finding the Fourth Proportional to 75,035.40, 112,553.10 and 68,911.80
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Solution
The fourth proportional to 75,035.40, 112,553.10 and 68,911.80 is: 103,367.70
Step by Step Solution
- Step 1: Write the proportion equation
75,035.40 : 112,553.10 = 68,911.80 : x - Step 2: Convert to fraction form
75,035.40/112,553.10 = 68,911.80/x - Step 3: Cross multiply
75,035.40x = 112,553.10 × 68,911.80 - Step 4: Simplify right side
75,035.40x = 7,756,236,716.58 - Step 5: Solve for x
x = 7,756,236,716.58/75,035.40 - Step 6: Final answer
x = 103,367.70
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1.5x scale
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.