Finding the Fourth Proportional to 88,935.64, 122,729.57 and 48,649.05
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Solution
The fourth proportional to 88,935.64, 122,729.57 and 48,649.05 is: 67,134.81
Step by Step Solution
- Step 1: Write the proportion equation
88,935.64 : 122,729.57 = 48,649.05 : x - Step 2: Convert to fraction form
88,935.64/122,729.57 = 48,649.05/x - Step 3: Cross multiply
88,935.64x = 122,729.57 × 48,649.05 - Step 4: Simplify right side
88,935.64x = 5,970,676,987.41 - Step 5: Solve for x
x = 5,970,676,987.41/88,935.64 - Step 6: Final answer
x = 67,134.81
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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.