Finding the Fourth Proportional to 77,072.50, 106,368.69 and 43,540.66
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Solution
The fourth proportional to 77,072.50, 106,368.69 and 43,540.66 is: 60,090.99
Step by Step Solution
- Step 1: Write the proportion equation
77,072.50 : 106,368.69 = 43,540.66 : x - Step 2: Convert to fraction form
77,072.50/106,368.69 = 43,540.66/x - Step 3: Cross multiply
77,072.50x = 106,368.69 × 43,540.66 - Step 4: Simplify right side
77,072.50x = 4,631,362,965.94 - Step 5: Solve for x
x = 4,631,362,965.94/77,072.50 - Step 6: Final answer
x = 60,090.99
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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.