Finding the Fourth Proportional to 75,137.67, 103,689.99 and 43,308.62
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Solution
The fourth proportional to 75,137.67, 103,689.99 and 43,308.62 is: 59,765.90
Step by Step Solution
- Step 1: Write the proportion equation
75,137.67 : 103,689.99 = 43,308.62 : x - Step 2: Convert to fraction form
75,137.67/103,689.99 = 43,308.62/x - Step 3: Cross multiply
75,137.67x = 103,689.99 × 43,308.62 - Step 4: Simplify right side
75,137.67x = 4,490,670,374.71 - Step 5: Solve for x
x = 4,490,670,374.71/75,137.67 - Step 6: Final answer
x = 59,765.90
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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.