Finding the Fourth Proportional to 75,137.64, 103,689.76 and 43,306.26
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Solution
The fourth proportional to 75,137.64, 103,689.76 and 43,306.26 is: 59,762.53
Step by Step Solution
- Step 1: Write the proportion equation
75,137.64 : 103,689.76 = 43,306.26 : x - Step 2: Convert to fraction form
75,137.64/103,689.76 = 43,306.26/x - Step 3: Cross multiply
75,137.64x = 103,689.76 × 43,306.26 - Step 4: Simplify right side
75,137.64x = 4,490,415,705.90 - Step 5: Solve for x
x = 4,490,415,705.90/75,137.64 - Step 6: Final answer
x = 59,762.53
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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.