Finding the Fourth Proportional to 77,441.90, 115,903.65 and 68,110.70
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Solution
The fourth proportional to 77,441.90, 115,903.65 and 68,110.70 is: 101,938.08
Step by Step Solution
- Step 1: Write the proportion equation
77,441.90 : 115,903.65 = 68,110.70 : x - Step 2: Convert to fraction form
77,441.90/115,903.65 = 68,110.70/x - Step 3: Cross multiply
77,441.90x = 115,903.65 × 68,110.70 - Step 4: Simplify right side
77,441.90x = 7,894,278,734.06 - Step 5: Solve for x
x = 7,894,278,734.06/77,441.90 - Step 6: Final answer
x = 101,938.08
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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.