Finding the Fourth Proportional to 75,628.44, 113,512.68 and 38,214.84
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Solution
The fourth proportional to 75,628.44, 113,512.68 and 38,214.84 is: 57,357.64
Step by Step Solution
- Step 1: Write the proportion equation
75,628.44 : 113,512.68 = 38,214.84 : x - Step 2: Convert to fraction form
75,628.44/113,512.68 = 38,214.84/x - Step 3: Cross multiply
75,628.44x = 113,512.68 × 38,214.84 - Step 4: Simplify right side
75,628.44x = 4,337,868,904.17 - Step 5: Solve for x
x = 4,337,868,904.17/75,628.44 - Step 6: Final answer
x = 57,357.64
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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.