Finding the Fourth Proportional to 68,043.80, 102,064.98 and 21,297.08
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Solution
The fourth proportional to 68,043.80, 102,064.98 and 21,297.08 is: 31,945.39
Step by Step Solution
- Step 1: Write the proportion equation
68,043.80 : 102,064.98 = 21,297.08 : x - Step 2: Convert to fraction form
68,043.80/102,064.98 = 21,297.08/x - Step 3: Cross multiply
68,043.80x = 102,064.98 × 21,297.08 - Step 4: Simplify right side
68,043.80x = 2,173,686,044.26 - Step 5: Solve for x
x = 2,173,686,044.26/68,043.80 - Step 6: Final answer
x = 31,945.39
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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.