Finding the Fourth Proportional to 75,478.92, 113,211.84 and 25,557.96
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Solution
The fourth proportional to 75,478.92, 113,211.84 and 25,557.96 is: 38,334.73
Step by Step Solution
- Step 1: Write the proportion equation
75,478.92 : 113,211.84 = 25,557.96 : x - Step 2: Convert to fraction form
75,478.92/113,211.84 = 25,557.96/x - Step 3: Cross multiply
75,478.92x = 113,211.84 × 25,557.96 - Step 4: Simplify right side
75,478.92x = 2,893,463,678.25 - Step 5: Solve for x
x = 2,893,463,678.25/75,478.92 - Step 6: Final answer
x = 38,334.73
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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.