Finding the Fourth Proportional to 74,728.17, 112,125.27 and 39,180.99
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Solution
The fourth proportional to 74,728.17, 112,125.27 and 39,180.99 is: 58,788.80
Step by Step Solution
- Step 1: Write the proportion equation
74,728.17 : 112,125.27 = 39,180.99 : x - Step 2: Convert to fraction form
74,728.17/112,125.27 = 39,180.99/x - Step 3: Cross multiply
74,728.17x = 112,125.27 × 39,180.99 - Step 4: Simplify right side
74,728.17x = 4,393,179,082.62 - Step 5: Solve for x
x = 4,393,179,082.62/74,728.17 - Step 6: Final answer
x = 58,788.80
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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.