Finding the Fourth Proportional to 87,837.67, 121,216.02 and 47,551.43
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Solution
The fourth proportional to 87,837.67, 121,216.02 and 47,551.43 is: 65,620.99
Step by Step Solution
- Step 1: Write the proportion equation
87,837.67 : 121,216.02 = 47,551.43 : x - Step 2: Convert to fraction form
87,837.67/121,216.02 = 47,551.43/x - Step 3: Cross multiply
87,837.67x = 121,216.02 × 47,551.43 - Step 4: Simplify right side
87,837.67x = 5,763,995,089.91 - Step 5: Solve for x
x = 5,763,995,089.91/87,837.67 - Step 6: Final answer
x = 65,620.99
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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.