Finding the Fourth Proportional to 86,896.38, 119,911.18 and 48,649.46
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Solution
The fourth proportional to 86,896.38, 119,911.18 and 48,649.46 is: 67,132.99
Step by Step Solution
- Step 1: Write the proportion equation
86,896.38 : 119,911.18 = 48,649.46 : x - Step 2: Convert to fraction form
86,896.38/119,911.18 = 48,649.46/x - Step 3: Cross multiply
86,896.38x = 119,911.18 × 48,649.46 - Step 4: Simplify right side
86,896.38x = 5,833,614,154.96 - Step 5: Solve for x
x = 5,833,614,154.96/86,896.38 - Step 6: Final answer
x = 67,132.99
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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.