Finding the Fourth Proportional to 75,212.36, 113,346.95 and 67,725.08
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Solution
The fourth proportional to 75,212.36, 113,346.95 and 67,725.08 is: 102,063.43
Step by Step Solution
- Step 1: Write the proportion equation
75,212.36 : 113,346.95 = 67,725.08 : x - Step 2: Convert to fraction form
75,212.36/113,346.95 = 67,725.08/x - Step 3: Cross multiply
75,212.36x = 113,346.95 × 67,725.08 - Step 4: Simplify right side
75,212.36x = 7,676,431,256.51 - Step 5: Solve for x
x = 7,676,431,256.51/75,212.36 - Step 6: Final answer
x = 102,063.43
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.