Finding the Fourth Proportional to 75,555.64, 113,358.09 and 36,115.82
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Solution
The fourth proportional to 75,555.64, 113,358.09 and 36,115.82 is: 54,185.50
Step by Step Solution
- Step 1: Write the proportion equation
75,555.64 : 113,358.09 = 36,115.82 : x - Step 2: Convert to fraction form
75,555.64/113,358.09 = 36,115.82/x - Step 3: Cross multiply
75,555.64x = 113,358.09 × 36,115.82 - Step 4: Simplify right side
75,555.64x = 4,094,019,807.19 - Step 5: Solve for x
x = 4,094,019,807.19/75,555.64 - Step 6: Final answer
x = 54,185.50
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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.