Finding the Fourth Proportional to 77,149.16, 115,732.98 and 27,218.93
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Solution
The fourth proportional to 77,149.16, 115,732.98 and 27,218.93 is: 40,831.66
Step by Step Solution
- Step 1: Write the proportion equation
77,149.16 : 115,732.98 = 27,218.93 : x - Step 2: Convert to fraction form
77,149.16/115,732.98 = 27,218.93/x - Step 3: Cross multiply
77,149.16x = 115,732.98 × 27,218.93 - Step 4: Simplify right side
77,149.16x = 3,150,127,745.22 - Step 5: Solve for x
x = 3,150,127,745.22/77,149.16 - Step 6: Final answer
x = 40,831.66
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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.