Finding the Fourth Proportional to 107,029.62, 160,644.06 and 54,478.44
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Solution
The fourth proportional to 107,029.62, 160,644.06 and 54,478.44 is: 81,768.37
Step by Step Solution
- Step 1: Write the proportion equation
107,029.62 : 160,644.06 = 54,478.44 : x - Step 2: Convert to fraction form
107,029.62/160,644.06 = 54,478.44/x - Step 3: Cross multiply
107,029.62x = 160,644.06 × 54,478.44 - Step 4: Simplify right side
107,029.62x = 8,751,637,784.07 - Step 5: Solve for x
x = 8,751,637,784.07/107,029.62 - Step 6: Final answer
x = 81,768.37
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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.