Finding the Fourth Proportional to 74,618.06, 102,970.35 and 40,625.96
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Solution
The fourth proportional to 74,618.06, 102,970.35 and 40,625.96 is: 56,062.42
Step by Step Solution
- Step 1: Write the proportion equation
74,618.06 : 102,970.35 = 40,625.96 : x - Step 2: Convert to fraction form
74,618.06/102,970.35 = 40,625.96/x - Step 3: Cross multiply
74,618.06x = 102,970.35 × 40,625.96 - Step 4: Simplify right side
74,618.06x = 4,183,268,805.43 - Step 5: Solve for x
x = 4,183,268,805.43/74,618.06 - Step 6: Final answer
x = 56,062.42
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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.