Finding the Fourth Proportional to 76,891.06, 106,109.49 and 43,356.82
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Solution
The fourth proportional to 76,891.06, 106,109.49 and 43,356.82 is: 59,832.31
Step by Step Solution
- Step 1: Write the proportion equation
76,891.06 : 106,109.49 = 43,356.82 : x - Step 2: Convert to fraction form
76,891.06/106,109.49 = 43,356.82/x - Step 3: Cross multiply
76,891.06x = 106,109.49 × 43,356.82 - Step 4: Simplify right side
76,891.06x = 4,600,570,058.22 - Step 5: Solve for x
x = 4,600,570,058.22/76,891.06 - Step 6: Final answer
x = 59,832.31
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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.