Finding the Fourth Proportional to 81,623.80, 122,423.30 and 27,587.79
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Solution
The fourth proportional to 81,623.80, 122,423.30 and 27,587.79 is: 41,377.49
Step by Step Solution
- Step 1: Write the proportion equation
81,623.80 : 122,423.30 = 27,587.79 : x - Step 2: Convert to fraction form
81,623.80/122,423.30 = 27,587.79/x - Step 3: Cross multiply
81,623.80x = 122,423.30 × 27,587.79 - Step 4: Simplify right side
81,623.80x = 3,377,388,257.02 - Step 5: Solve for x
x = 3,377,388,257.02/81,623.80 - Step 6: Final answer
x = 41,377.49
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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.