Finding the Fourth Proportional to 67,644.24, 101,489.67 and 30,230.13
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Solution
The fourth proportional to 67,644.24, 101,489.67 and 30,230.13 is: 45,355.61
Step by Step Solution
- Step 1: Write the proportion equation
67,644.24 : 101,489.67 = 30,230.13 : x - Step 2: Convert to fraction form
67,644.24/101,489.67 = 30,230.13/x - Step 3: Cross multiply
67,644.24x = 101,489.67 × 30,230.13 - Step 4: Simplify right side
67,644.24x = 3,068,045,917.76 - Step 5: Solve for x
x = 3,068,045,917.76/67,644.24 - Step 6: Final answer
x = 45,355.61
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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.