Finding the Fourth Proportional to 74,486.50, 102,793.32 and 40,497.28
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Solution
The fourth proportional to 74,486.50, 102,793.32 and 40,497.28 is: 55,887.31
Step by Step Solution
- Step 1: Write the proportion equation
74,486.50 : 102,793.32 = 40,497.28 : x - Step 2: Convert to fraction form
74,486.50/102,793.32 = 40,497.28/x - Step 3: Cross multiply
74,486.50x = 102,793.32 × 40,497.28 - Step 4: Simplify right side
74,486.50x = 4,162,849,605.19 - Step 5: Solve for x
x = 4,162,849,605.19/74,486.50 - Step 6: Final answer
x = 55,887.31
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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.