Finding the Fourth Proportional to 94,639.03, 141,911.11 and 31,436.99
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Solution
The fourth proportional to 94,639.03, 141,911.11 and 31,436.99 is: 47,139.73
Step by Step Solution
- Step 1: Write the proportion equation
94,639.03 : 141,911.11 = 31,436.99 : x - Step 2: Convert to fraction form
94,639.03/141,911.11 = 31,436.99/x - Step 3: Cross multiply
94,639.03x = 141,911.11 × 31,436.99 - Step 4: Simplify right side
94,639.03x = 4,461,258,806.12 - Step 5: Solve for x
x = 4,461,258,806.12/94,639.03 - Step 6: Final answer
x = 47,139.73
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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.