Finding the Fourth Proportional to 74,912.36, 103,393.58 and 48,088.80
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Solution
The fourth proportional to 74,912.36, 103,393.58 and 48,088.80 is: 66,371.87
Step by Step Solution
- Step 1: Write the proportion equation
74,912.36 : 103,393.58 = 48,088.80 : x - Step 2: Convert to fraction form
74,912.36/103,393.58 = 48,088.80/x - Step 3: Cross multiply
74,912.36x = 103,393.58 × 48,088.80 - Step 4: Simplify right side
74,912.36x = 4,972,072,949.46 - Step 5: Solve for x
x = 4,972,072,949.46/74,912.36 - Step 6: Final answer
x = 66,371.87
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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.