Finding the Fourth Proportional to 76,810.97, 115,133.22 and 39,319.62
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Solution
The fourth proportional to 76,810.97, 115,133.22 and 39,319.62 is: 58,936.83
Step by Step Solution
- Step 1: Write the proportion equation
76,810.97 : 115,133.22 = 39,319.62 : x - Step 2: Convert to fraction form
76,810.97/115,133.22 = 39,319.62/x - Step 3: Cross multiply
76,810.97x = 115,133.22 × 39,319.62 - Step 4: Simplify right side
76,810.97x = 4,526,994,459.78 - Step 5: Solve for x
x = 4,526,994,459.78/76,810.97 - Step 6: Final answer
x = 58,936.83
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1.5x scale
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.