Finding the Fourth Proportional to 99,630.85, 149,486.33 and 40,471.15
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Solution
The fourth proportional to 99,630.85, 149,486.33 and 40,471.15 is: 60,722.99
Step by Step Solution
- Step 1: Write the proportion equation
99,630.85 : 149,486.33 = 40,471.15 : x - Step 2: Convert to fraction form
99,630.85/149,486.33 = 40,471.15/x - Step 3: Cross multiply
99,630.85x = 149,486.33 × 40,471.15 - Step 4: Simplify right side
99,630.85x = 6,049,883,482.02 - Step 5: Solve for x
x = 6,049,883,482.02/99,630.85 - Step 6: Final answer
x = 60,722.99
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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.