Finding the Fourth Proportional to 75,618.74, 113,498.28 and 38,205.09
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Solution
The fourth proportional to 75,618.74, 113,498.28 and 38,205.09 is: 57,343.09
Step by Step Solution
- Step 1: Write the proportion equation
75,618.74 : 113,498.28 = 38,205.09 : x - Step 2: Convert to fraction form
75,618.74/113,498.28 = 38,205.09/x - Step 3: Cross multiply
75,618.74x = 113,498.28 × 38,205.09 - Step 4: Simplify right side
75,618.74x = 4,336,212,427.86 - Step 5: Solve for x
x = 4,336,212,427.86/75,618.74 - Step 6: Final answer
x = 57,343.09
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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.