Finding the Fourth Proportional to 90,958.06, 124,612.99 and 87,549.03
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Solution
The fourth proportional to 90,958.06, 124,612.99 and 87,549.03 is: 119,942.60
Step by Step Solution
- Step 1: Write the proportion equation
90,958.06 : 124,612.99 = 87,549.03 : x - Step 2: Convert to fraction form
90,958.06/124,612.99 = 87,549.03/x - Step 3: Cross multiply
90,958.06x = 124,612.99 × 87,549.03 - Step 4: Simplify right side
90,958.06x = 10,909,746,399.90 - Step 5: Solve for x
x = 10,909,746,399.90/90,958.06 - Step 6: Final answer
x = 119,942.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.