Finding the Fourth Proportional to 77,706.67, 107,235.04 and 43,715.17
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Solution
The fourth proportional to 77,706.67, 107,235.04 and 43,715.17 is: 60,326.84
Step by Step Solution
- Step 1: Write the proportion equation
77,706.67 : 107,235.04 = 43,715.17 : x - Step 2: Convert to fraction form
77,706.67/107,235.04 = 43,715.17/x - Step 3: Cross multiply
77,706.67x = 107,235.04 × 43,715.17 - Step 4: Simplify right side
77,706.67x = 4,687,798,003.56 - Step 5: Solve for x
x = 4,687,798,003.56/77,706.67 - Step 6: Final answer
x = 60,326.84
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.