Finding the Fourth Proportional to 94,129.38, 129,809.51 and 61,806.99
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Solution
The fourth proportional to 94,129.38, 129,809.51 and 61,806.99 is: 85,235.18
Step by Step Solution
- Step 1: Write the proportion equation
94,129.38 : 129,809.51 = 61,806.99 : x - Step 2: Convert to fraction form
94,129.38/129,809.51 = 61,806.99/x - Step 3: Cross multiply
94,129.38x = 129,809.51 × 61,806.99 - Step 4: Simplify right side
94,129.38x = 8,023,135,086.47 - Step 5: Solve for x
x = 8,023,135,086.47/94,129.38 - Step 6: Final answer
x = 85,235.18
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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.