Finding the Fourth Proportional to 84,618.88, 126,913.98 and 39,644.92
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Solution
The fourth proportional to 84,618.88, 126,913.98 and 39,644.92 is: 59,460.66
Step by Step Solution
- Step 1: Write the proportion equation
84,618.88 : 126,913.98 = 39,644.92 : x - Step 2: Convert to fraction form
84,618.88/126,913.98 = 39,644.92/x - Step 3: Cross multiply
84,618.88x = 126,913.98 × 39,644.92 - Step 4: Simplify right side
84,618.88x = 5,031,494,583.98 - Step 5: Solve for x
x = 5,031,494,583.98/84,618.88 - Step 6: Final answer
x = 59,460.66
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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.