Finding the Fourth Proportional to 74,029.92, 102,163.68 and 40,495.92
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Solution
The fourth proportional to 74,029.92, 102,163.68 and 40,495.92 is: 55,885.68
Step by Step Solution
- Step 1: Write the proportion equation
74,029.92 : 102,163.68 = 40,495.92 : x - Step 2: Convert to fraction form
74,029.92/102,163.68 = 40,495.92/x - Step 3: Cross multiply
74,029.92x = 102,163.68 × 40,495.92 - Step 4: Simplify right side
74,029.92x = 4,137,212,212.19 - Step 5: Solve for x
x = 4,137,212,212.19/74,029.92 - Step 6: Final answer
x = 55,885.68
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1.5x scale
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.