Finding the Fourth Proportional to 75,162.20, 103,723.62 and 41,628.20
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Solution
The fourth proportional to 75,162.20, 103,723.62 and 41,628.20 is: 57,446.80
Step by Step Solution
- Step 1: Write the proportion equation
75,162.20 : 103,723.62 = 41,628.20 : x - Step 2: Convert to fraction form
75,162.20/103,723.62 = 41,628.20/x - Step 3: Cross multiply
75,162.20x = 103,723.62 × 41,628.20 - Step 4: Simplify right side
75,162.20x = 4,317,827,598.08 - Step 5: Solve for x
x = 4,317,827,598.08/75,162.20 - Step 6: Final answer
x = 57,446.80
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1.5x scale
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.