Finding the Fourth Proportional to 99,571.98, 149,341.77 and 40,405.26
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Solution
The fourth proportional to 99,571.98, 149,341.77 and 40,405.26 is: 60,601.32
Step by Step Solution
- Step 1: Write the proportion equation
99,571.98 : 149,341.77 = 40,405.26 : x - Step 2: Convert to fraction form
99,571.98/149,341.77 = 40,405.26/x - Step 3: Cross multiply
99,571.98x = 149,341.77 × 40,405.26 - Step 4: Simplify right side
99,571.98x = 6,034,193,045.71 - Step 5: Solve for x
x = 6,034,193,045.71/99,571.98 - Step 6: Final answer
x = 60,601.32
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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.