Finding the Fourth Proportional to 91,670.13, 126,508.23 and 51,384.68
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Solution
The fourth proportional to 91,670.13, 126,508.23 and 51,384.68 is: 70,912.79
Step by Step Solution
- Step 1: Write the proportion equation
91,670.13 : 126,508.23 = 51,384.68 : x - Step 2: Convert to fraction form
91,670.13/126,508.23 = 51,384.68/x - Step 3: Cross multiply
91,670.13x = 126,508.23 × 51,384.68 - Step 4: Simplify right side
91,670.13x = 6,500,584,757.78 - Step 5: Solve for x
x = 6,500,584,757.78/91,670.13 - Step 6: Final answer
x = 70,912.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.