Finding the Fourth Proportional to 75,927.84, 113,891.58 and 20,523.84
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Solution
The fourth proportional to 75,927.84, 113,891.58 and 20,523.84 is: 30,785.71
Step by Step Solution
- Step 1: Write the proportion equation
75,927.84 : 113,891.58 = 20,523.84 : x - Step 2: Convert to fraction form
75,927.84/113,891.58 = 20,523.84/x - Step 3: Cross multiply
75,927.84x = 113,891.58 × 20,523.84 - Step 4: Simplify right side
75,927.84x = 2,337,492,565.27 - Step 5: Solve for x
x = 2,337,492,565.27/75,927.84 - Step 6: Final answer
x = 30,785.71
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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.