Finding the Fourth Proportional to 74,850.17, 112,356.14 and 66,583.13
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Solution
The fourth proportional to 74,850.17, 112,356.14 and 66,583.13 is: 99,946.65
Step by Step Solution
- Step 1: Write the proportion equation
74,850.17 : 112,356.14 = 66,583.13 : x - Step 2: Convert to fraction form
74,850.17/112,356.14 = 66,583.13/x - Step 3: Cross multiply
74,850.17x = 112,356.14 × 66,583.13 - Step 4: Simplify right side
74,850.17x = 7,481,023,475.92 - Step 5: Solve for x
x = 7,481,023,475.92/74,850.17 - Step 6: Final answer
x = 99,946.65
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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.