Finding the Fourth Proportional to 75,127.60, 112,753.97 and 39,601.68
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Solution
The fourth proportional to 75,127.60, 112,753.97 and 39,601.68 is: 59,435.50
Step by Step Solution
- Step 1: Write the proportion equation
75,127.60 : 112,753.97 = 39,601.68 : x - Step 2: Convert to fraction form
75,127.60/112,753.97 = 39,601.68/x - Step 3: Cross multiply
75,127.60x = 112,753.97 × 39,601.68 - Step 4: Simplify right side
75,127.60x = 4,465,246,638.67 - Step 5: Solve for x
x = 4,465,246,638.67/75,127.60 - Step 6: Final answer
x = 59,435.50
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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.