Finding the Fourth Proportional to 75,528.21, 113,242.63 and 42,251.79
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Solution
The fourth proportional to 75,528.21, 113,242.63 and 42,251.79 is: 63,349.89
Step by Step Solution
- Step 1: Write the proportion equation
75,528.21 : 113,242.63 = 42,251.79 : x - Step 2: Convert to fraction form
75,528.21/113,242.63 = 42,251.79/x - Step 3: Cross multiply
75,528.21x = 113,242.63 × 42,251.79 - Step 4: Simplify right side
75,528.21x = 4,784,703,821.81 - Step 5: Solve for x
x = 4,784,703,821.81/75,528.21 - Step 6: Final answer
x = 63,349.89
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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.