Finding the Fourth Proportional to 75,691.45, 113,550.95 and 25,768.99
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Solution
The fourth proportional to 75,691.45, 113,550.95 and 25,768.99 is: 38,658.17
Step by Step Solution
- Step 1: Write the proportion equation
75,691.45 : 113,550.95 = 25,768.99 : x - Step 2: Convert to fraction form
75,691.45/113,550.95 = 25,768.99/x - Step 3: Cross multiply
75,691.45x = 113,550.95 × 25,768.99 - Step 4: Simplify right side
75,691.45x = 2,926,093,295.04 - Step 5: Solve for x
x = 2,926,093,295.04/75,691.45 - Step 6: Final answer
x = 38,658.17
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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.