Finding the Fourth Proportional to 89,332.07, 133,997.97 and 69,625.40
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Solution
The fourth proportional to 89,332.07, 133,997.97 and 69,625.40 is: 104,437.99
Step by Step Solution
- Step 1: Write the proportion equation
89,332.07 : 133,997.97 = 69,625.40 : x - Step 2: Convert to fraction form
89,332.07/133,997.97 = 69,625.40/x - Step 3: Cross multiply
89,332.07x = 133,997.97 × 69,625.40 - Step 4: Simplify right side
89,332.07x = 9,329,662,260.44 - Step 5: Solve for x
x = 9,329,662,260.44/89,332.07 - Step 6: Final answer
x = 104,437.99
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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.