Finding the Fourth Proportional to 76,943.88, 115,112.16 and 58,277.70
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Solution
The fourth proportional to 76,943.88, 115,112.16 and 58,277.70 is: 87,186.56
Step by Step Solution
- Step 1: Write the proportion equation
76,943.88 : 115,112.16 = 58,277.70 : x - Step 2: Convert to fraction form
76,943.88/115,112.16 = 58,277.70/x - Step 3: Cross multiply
76,943.88x = 115,112.16 × 58,277.70 - Step 4: Simplify right side
76,943.88x = 6,708,471,926.83 - Step 5: Solve for x
x = 6,708,471,926.83/76,943.88 - Step 6: Final answer
x = 87,186.56
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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.