Finding the Fourth Proportional to 75,857.79, 113,209.88 and 67,450.44
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Solution
The fourth proportional to 75,857.79, 113,209.88 and 67,450.44 is: 100,662.78
Step by Step Solution
- Step 1: Write the proportion equation
75,857.79 : 113,209.88 = 67,450.44 : x - Step 2: Convert to fraction form
75,857.79/113,209.88 = 67,450.44/x - Step 3: Cross multiply
75,857.79x = 113,209.88 × 67,450.44 - Step 4: Simplify right side
75,857.79x = 7,636,055,881.10 - Step 5: Solve for x
x = 7,636,055,881.10/75,857.79 - Step 6: Final answer
x = 100,662.78
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.