Finding the Fourth Proportional to 89,657.88, 123,612.26 and 73,464.99
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Solution
The fourth proportional to 89,657.88, 123,612.26 and 73,464.99 is: 101,286.95
Step by Step Solution
- Step 1: Write the proportion equation
89,657.88 : 123,612.26 = 73,464.99 : x - Step 2: Convert to fraction form
89,657.88/123,612.26 = 73,464.99/x - Step 3: Cross multiply
89,657.88x = 123,612.26 × 73,464.99 - Step 4: Simplify right side
89,657.88x = 9,081,173,077.45 - Step 5: Solve for x
x = 9,081,173,077.45/89,657.88 - Step 6: Final answer
x = 101,286.95
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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.