Finding the Fourth Proportional to 75,780.16, 113,657.99 and 35,799.05
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Solution
The fourth proportional to 75,780.16, 113,657.99 and 35,799.05 is: 53,692.79
Step by Step Solution
- Step 1: Write the proportion equation
75,780.16 : 113,657.99 = 35,799.05 : x - Step 2: Convert to fraction form
75,780.16/113,657.99 = 35,799.05/x - Step 3: Cross multiply
75,780.16x = 113,657.99 × 35,799.05 - Step 4: Simplify right side
75,780.16x = 4,068,848,066.91 - Step 5: Solve for x
x = 4,068,848,066.91/75,780.16 - Step 6: Final answer
x = 53,692.79
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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.