Finding the Fourth Proportional to 87,199.13, 120,371.37 and 58,943.09
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Solution
The fourth proportional to 87,199.13, 120,371.37 and 58,943.09 is: 81,366.18
Step by Step Solution
- Step 1: Write the proportion equation
87,199.13 : 120,371.37 = 58,943.09 : x - Step 2: Convert to fraction form
87,199.13/120,371.37 = 58,943.09/x - Step 3: Cross multiply
87,199.13x = 120,371.37 × 58,943.09 - Step 4: Simplify right side
87,199.13x = 7,095,060,575.23 - Step 5: Solve for x
x = 7,095,060,575.23/87,199.13 - Step 6: Final answer
x = 81,366.18
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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.