Finding the Fourth Proportional to 77,067.73, 115,603.99 and 20,907.62
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Solution
The fourth proportional to 77,067.73, 115,603.99 and 20,907.62 is: 31,362.08
Step by Step Solution
- Step 1: Write the proportion equation
77,067.73 : 115,603.99 = 20,907.62 : x - Step 2: Convert to fraction form
77,067.73/115,603.99 = 20,907.62/x - Step 3: Cross multiply
77,067.73x = 115,603.99 × 20,907.62 - Step 4: Simplify right side
77,067.73x = 2,417,004,293.40 - Step 5: Solve for x
x = 2,417,004,293.40/77,067.73 - Step 6: Final answer
x = 31,362.08
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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.