Finding the Fourth Proportional to 75,876.45, 113,755.74 and 49,165.99
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Solution
The fourth proportional to 75,876.45, 113,755.74 and 49,165.99 is: 73,710.80
Step by Step Solution
- Step 1: Write the proportion equation
75,876.45 : 113,755.74 = 49,165.99 : x - Step 2: Convert to fraction form
75,876.45/113,755.74 = 49,165.99/x - Step 3: Cross multiply
75,876.45x = 113,755.74 × 49,165.99 - Step 4: Simplify right side
75,876.45x = 5,592,913,383.08 - Step 5: Solve for x
x = 5,592,913,383.08/75,876.45 - Step 6: Final answer
x = 73,710.80
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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.