Finding the Fourth Proportional to 84,701.51, 117,025.38 and 72,087.99
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Solution
The fourth proportional to 84,701.51, 117,025.38 and 72,087.99 is: 99,598.28
Step by Step Solution
- Step 1: Write the proportion equation
84,701.51 : 117,025.38 = 72,087.99 : x - Step 2: Convert to fraction form
84,701.51/117,025.38 = 72,087.99/x - Step 3: Cross multiply
84,701.51x = 117,025.38 × 72,087.99 - Step 4: Simplify right side
84,701.51x = 8,436,124,423.19 - Step 5: Solve for x
x = 8,436,124,423.19/84,701.51 - Step 6: Final answer
x = 99,598.28
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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.