Finding the Fourth Proportional to 90,539.24, 135,816.12 and 34,406.24
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Solution
The fourth proportional to 90,539.24, 135,816.12 and 34,406.24 is: 51,612.12
Step by Step Solution
- Step 1: Write the proportion equation
90,539.24 : 135,816.12 = 34,406.24 : x - Step 2: Convert to fraction form
90,539.24/135,816.12 = 34,406.24/x - Step 3: Cross multiply
90,539.24x = 135,816.12 × 34,406.24 - Step 4: Simplify right side
90,539.24x = 4,672,922,020.59 - Step 5: Solve for x
x = 4,672,922,020.59/90,539.24 - Step 6: Final answer
x = 51,612.12
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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.