Finding the Fourth Proportional to 67,761.36, 101,758.68 and 36,618.48
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Solution
The fourth proportional to 67,761.36, 101,758.68 and 36,618.48 is: 54,990.75
Step by Step Solution
- Step 1: Write the proportion equation
67,761.36 : 101,758.68 = 36,618.48 : x - Step 2: Convert to fraction form
67,761.36/101,758.68 = 36,618.48/x - Step 3: Cross multiply
67,761.36x = 101,758.68 × 36,618.48 - Step 4: Simplify right side
67,761.36x = 3,726,248,188.41 - Step 5: Solve for x
x = 3,726,248,188.41/67,761.36 - Step 6: Final answer
x = 54,990.75
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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.