Finding the Fourth Proportional to 75,272.13, 103,863.74 and 43,434.95
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Solution
The fourth proportional to 75,272.13, 103,863.74 and 43,434.95 is: 59,933.41
Step by Step Solution
- Step 1: Write the proportion equation
75,272.13 : 103,863.74 = 43,434.95 : x - Step 2: Convert to fraction form
75,272.13/103,863.74 = 43,434.95/x - Step 3: Cross multiply
75,272.13x = 103,863.74 × 43,434.95 - Step 4: Simplify right side
75,272.13x = 4,511,315,617.22 - Step 5: Solve for x
x = 4,511,315,617.22/75,272.13 - Step 6: Final answer
x = 59,933.41
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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.