Finding the Fourth Proportional to 84,581.67, 126,521.86 and 64,438.75
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Solution
The fourth proportional to 84,581.67, 126,521.86 and 64,438.75 is: 96,390.99
Step by Step Solution
- Step 1: Write the proportion equation
84,581.67 : 126,521.86 = 64,438.75 : x - Step 2: Convert to fraction form
84,581.67/126,521.86 = 64,438.75/x - Step 3: Cross multiply
84,581.67x = 126,521.86 × 64,438.75 - Step 4: Simplify right side
84,581.67x = 8,152,910,506.08 - Step 5: Solve for x
x = 8,152,910,506.08/84,581.67 - Step 6: Final answer
x = 96,390.99
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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.