Finding the Fourth Proportional to 74,950.68, 112,476.96 and 39,914.88
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Solution
The fourth proportional to 74,950.68, 112,476.96 and 39,914.88 is: 59,899.45
Step by Step Solution
- Step 1: Write the proportion equation
74,950.68 : 112,476.96 = 39,914.88 : x - Step 2: Convert to fraction form
74,950.68/112,476.96 = 39,914.88/x - Step 3: Cross multiply
74,950.68x = 112,476.96 × 39,914.88 - Step 4: Simplify right side
74,950.68x = 4,489,504,361.16 - Step 5: Solve for x
x = 4,489,504,361.16/74,950.68 - Step 6: Final answer
x = 59,899.45
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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.