Finding the Fourth Proportional to 74,365.28, 102,622.92 and 40,831.28
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Solution
The fourth proportional to 74,365.28, 102,622.92 and 40,831.28 is: 56,346.53
Step by Step Solution
- Step 1: Write the proportion equation
74,365.28 : 102,622.92 = 40,831.28 : x - Step 2: Convert to fraction form
74,365.28/102,622.92 = 40,831.28/x - Step 3: Cross multiply
74,365.28x = 102,622.92 × 40,831.28 - Step 4: Simplify right side
74,365.28x = 4,190,225,180.94 - Step 5: Solve for x
x = 4,190,225,180.94/74,365.28 - Step 6: Final answer
x = 56,346.53
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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.