Finding the Fourth Proportional to 79,722.40, 119,353.20 and 48,618.40
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Solution
The fourth proportional to 79,722.40, 119,353.20 and 48,618.40 is: 72,787.09
Step by Step Solution
- Step 1: Write the proportion equation
79,722.40 : 119,353.20 = 48,618.40 : x - Step 2: Convert to fraction form
79,722.40/119,353.20 = 48,618.40/x - Step 3: Cross multiply
79,722.40x = 119,353.20 × 48,618.40 - Step 4: Simplify right side
79,722.40x = 5,802,761,618.88 - Step 5: Solve for x
x = 5,802,761,618.88/79,722.40 - Step 6: Final answer
x = 72,787.09
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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.