Finding the Fourth Proportional to 76,876.84, 115,361.34 and 27,632.68
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Solution
The fourth proportional to 76,876.84, 115,361.34 and 27,632.68 is: 41,465.58
Step by Step Solution
- Step 1: Write the proportion equation
76,876.84 : 115,361.34 = 27,632.68 : x - Step 2: Convert to fraction form
76,876.84/115,361.34 = 27,632.68/x - Step 3: Cross multiply
76,876.84x = 115,361.34 × 27,632.68 - Step 4: Simplify right side
76,876.84x = 3,187,742,992.59 - Step 5: Solve for x
x = 3,187,742,992.59/76,876.84 - Step 6: Final answer
x = 41,465.58
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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.