Finding the Fourth Proportional to 91,054.21, 125,591.97 and 60,421.63
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Solution
The fourth proportional to 91,054.21, 125,591.97 and 60,421.63 is: 83,340.15
Step by Step Solution
- Step 1: Write the proportion equation
91,054.21 : 125,591.97 = 60,421.63 : x - Step 2: Convert to fraction form
91,054.21/125,591.97 = 60,421.63/x - Step 3: Cross multiply
91,054.21x = 125,591.97 × 60,421.63 - Step 4: Simplify right side
91,054.21x = 7,588,471,542.31 - Step 5: Solve for x
x = 7,588,471,542.31/91,054.21 - Step 6: Final answer
x = 83,340.15
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.