Finding the Fourth Proportional to 91,421.76, 137,019.84 and 41,487.68
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Solution
The fourth proportional to 91,421.76, 137,019.84 and 41,487.68 is: 62,180.33
Step by Step Solution
- Step 1: Write the proportion equation
91,421.76 : 137,019.84 = 41,487.68 : x - Step 2: Convert to fraction form
91,421.76/137,019.84 = 41,487.68/x - Step 3: Cross multiply
91,421.76x = 137,019.84 × 41,487.68 - Step 4: Simplify right side
91,421.76x = 5,684,635,275.57 - Step 5: Solve for x
x = 5,684,635,275.57/91,421.76 - Step 6: Final answer
x = 62,180.33
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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.