Finding the Fourth Proportional to 74,353.50, 102,609.99 and 40,821.66
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Solution
The fourth proportional to 74,353.50, 102,609.99 and 40,821.66 is: 56,335.08
Step by Step Solution
- Step 1: Write the proportion equation
74,353.50 : 102,609.99 = 40,821.66 : x - Step 2: Convert to fraction form
74,353.50/102,609.99 = 40,821.66/x - Step 3: Cross multiply
74,353.50x = 102,609.99 × 40,821.66 - Step 4: Simplify right side
74,353.50x = 4,188,710,124.38 - Step 5: Solve for x
x = 4,188,710,124.38/74,353.50 - Step 6: Final answer
x = 56,335.08
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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.