Finding the Fourth Proportional to 75,521.15, 113,274.39 and 22,931.09
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Solution
The fourth proportional to 75,521.15, 113,274.39 and 22,931.09 is: 34,394.41
Step by Step Solution
- Step 1: Write the proportion equation
75,521.15 : 113,274.39 = 22,931.09 : x - Step 2: Convert to fraction form
75,521.15/113,274.39 = 22,931.09/x - Step 3: Cross multiply
75,521.15x = 113,274.39 × 22,931.09 - Step 4: Simplify right side
75,521.15x = 2,597,505,231.79 - Step 5: Solve for x
x = 2,597,505,231.79/75,521.15 - Step 6: Final answer
x = 34,394.41
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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.