Finding the Fourth Proportional to 74,486.70, 102,793.67 and 40,497.47
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Solution
The fourth proportional to 74,486.70, 102,793.67 and 40,497.47 is: 55,887.61
Step by Step Solution
- Step 1: Write the proportion equation
74,486.70 : 102,793.67 = 40,497.47 : x - Step 2: Convert to fraction form
74,486.70/102,793.67 = 40,497.47/x - Step 3: Cross multiply
74,486.70x = 102,793.67 × 40,497.47 - Step 4: Simplify right side
74,486.70x = 4,162,883,364.53 - Step 5: Solve for x
x = 4,162,883,364.53/74,486.70 - Step 6: Final answer
x = 55,887.61
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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.