Finding the Fourth Proportional to 74,610.36, 102,944.88 and 54,478.08
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Solution
The fourth proportional to 74,610.36, 102,944.88 and 54,478.08 is: 75,167.03
Step by Step Solution
- Step 1: Write the proportion equation
74,610.36 : 102,944.88 = 54,478.08 : x - Step 2: Convert to fraction form
74,610.36/102,944.88 = 54,478.08/x - Step 3: Cross multiply
74,610.36x = 102,944.88 × 54,478.08 - Step 4: Simplify right side
74,610.36x = 5,608,239,408.23 - Step 5: Solve for x
x = 5,608,239,408.23/74,610.36 - Step 6: Final answer
x = 75,167.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.