Finding the Fourth Proportional to 86,332.11, 129,497.98 and 27,172.95
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Solution
The fourth proportional to 86,332.11, 129,497.98 and 27,172.95 is: 40,759.37
Step by Step Solution
- Step 1: Write the proportion equation
86,332.11 : 129,497.98 = 27,172.95 : x - Step 2: Convert to fraction form
86,332.11/129,497.98 = 27,172.95/x - Step 3: Cross multiply
86,332.11x = 129,497.98 × 27,172.95 - Step 4: Simplify right side
86,332.11x = 3,518,842,135.64 - Step 5: Solve for x
x = 3,518,842,135.64/86,332.11 - Step 6: Final answer
x = 40,759.37
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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.