Finding the Fourth Proportional to 93,837.62, 129,475.11 and 55,578.08
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Solution
The fourth proportional to 93,837.62, 129,475.11 and 55,578.08 is: 76,685.43
Step by Step Solution
- Step 1: Write the proportion equation
93,837.62 : 129,475.11 = 55,578.08 : x - Step 2: Convert to fraction form
93,837.62/129,475.11 = 55,578.08/x - Step 3: Cross multiply
93,837.62x = 129,475.11 × 55,578.08 - Step 4: Simplify right side
93,837.62x = 7,195,978,021.59 - Step 5: Solve for x
x = 7,195,978,021.59/93,837.62 - Step 6: Final answer
x = 76,685.43
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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.