Finding the Fourth Proportional to 68,320.20, 102,384.30 and 54,304.20
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Solution
The fourth proportional to 68,320.20, 102,384.30 and 54,304.20 is: 81,379.99
Step by Step Solution
- Step 1: Write the proportion equation
68,320.20 : 102,384.30 = 54,304.20 : x - Step 2: Convert to fraction form
68,320.20/102,384.30 = 54,304.20/x - Step 3: Cross multiply
68,320.20x = 102,384.30 × 54,304.20 - Step 4: Simplify right side
68,320.20x = 5,559,897,504.06 - Step 5: Solve for x
x = 5,559,897,504.06/68,320.20 - Step 6: Final answer
x = 81,379.99
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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.