Finding the Fourth Proportional to 73,791.18, 101,831.49 and 40,257.18
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Solution
The fourth proportional to 73,791.18, 101,831.49 and 40,257.18 is: 55,554.72
Step by Step Solution
- Step 1: Write the proportion equation
73,791.18 : 101,831.49 = 40,257.18 : x - Step 2: Convert to fraction form
73,791.18/101,831.49 = 40,257.18/x - Step 3: Cross multiply
73,791.18x = 101,831.49 × 40,257.18 - Step 4: Simplify right side
73,791.18x = 4,099,448,622.60 - Step 5: Solve for x
x = 4,099,448,622.60/73,791.18 - Step 6: Final answer
x = 55,554.72
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1.5x scale
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.