Finding the Fourth Proportional to 75,550.15, 113,329.26 and 19,390.74
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Solution
The fourth proportional to 75,550.15, 113,329.26 and 19,390.74 is: 29,087.15
Step by Step Solution
- Step 1: Write the proportion equation
75,550.15 : 113,329.26 = 19,390.74 : x - Step 2: Convert to fraction form
75,550.15/113,329.26 = 19,390.74/x - Step 3: Cross multiply
75,550.15x = 113,329.26 × 19,390.74 - Step 4: Simplify right side
75,550.15x = 2,197,538,215.05 - Step 5: Solve for x
x = 2,197,538,215.05/75,550.15 - Step 6: Final answer
x = 29,087.15
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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.