Finding the Fourth Proportional to 75,622.68, 113,235.84 and 53,315.28
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Solution
The fourth proportional to 75,622.68, 113,235.84 and 53,315.28 is: 79,833.20
Step by Step Solution
- Step 1: Write the proportion equation
75,622.68 : 113,235.84 = 53,315.28 : x - Step 2: Convert to fraction form
75,622.68/113,235.84 = 53,315.28/x - Step 3: Cross multiply
75,622.68x = 113,235.84 × 53,315.28 - Step 4: Simplify right side
75,622.68x = 6,037,200,515.64 - Step 5: Solve for x
x = 6,037,200,515.64/75,622.68 - Step 6: Final answer
x = 79,833.20
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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.