Finding the Fourth Proportional to 76,753.56, 115,133.94 and 47,152.92
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Solution
The fourth proportional to 76,753.56, 115,133.94 and 47,152.92 is: 70,731.59
Step by Step Solution
- Step 1: Write the proportion equation
76,753.56 : 115,133.94 = 47,152.92 : x - Step 2: Convert to fraction form
76,753.56/115,133.94 = 47,152.92/x - Step 3: Cross multiply
76,753.56x = 115,133.94 × 47,152.92 - Step 4: Simplify right side
76,753.56x = 5,428,901,462.10 - Step 5: Solve for x
x = 5,428,901,462.10/76,753.56 - Step 6: Final answer
x = 70,731.59
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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.