Finding the Fourth Proportional to 96,578.47, 133,286.51 and 54,145.20
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Solution
The fourth proportional to 96,578.47, 133,286.51 and 54,145.20 is: 74,724.99
Step by Step Solution
- Step 1: Write the proportion equation
96,578.47 : 133,286.51 = 54,145.20 : x - Step 2: Convert to fraction form
96,578.47/133,286.51 = 54,145.20/x - Step 3: Cross multiply
96,578.47x = 133,286.51 × 54,145.20 - Step 4: Simplify right side
96,578.47x = 7,216,824,741.25 - Step 5: Solve for x
x = 7,216,824,741.25/96,578.47 - Step 6: Final answer
x = 74,724.99
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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.