Finding the Fourth Proportional to 86,586.30, 129,847.05 and 60,212.70
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Solution
The fourth proportional to 86,586.30, 129,847.05 and 60,212.70 is: 90,296.52
Step by Step Solution
- Step 1: Write the proportion equation
86,586.30 : 129,847.05 = 60,212.70 : x - Step 2: Convert to fraction form
86,586.30/129,847.05 = 60,212.70/x - Step 3: Cross multiply
86,586.30x = 129,847.05 × 60,212.70 - Step 4: Simplify right side
86,586.30x = 7,818,441,467.54 - Step 5: Solve for x
x = 7,818,441,467.54/86,586.30 - Step 6: Final answer
x = 90,296.52
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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.