Finding the Fourth Proportional to 87,203.84, 120,377.84 and 58,947.80
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Solution
The fourth proportional to 87,203.84, 120,377.84 and 58,947.80 is: 81,372.66
Step by Step Solution
- Step 1: Write the proportion equation
87,203.84 : 120,377.84 = 58,947.80 : x - Step 2: Convert to fraction form
87,203.84/120,377.84 = 58,947.80/x - Step 3: Cross multiply
87,203.84x = 120,377.84 × 58,947.80 - Step 4: Simplify right side
87,203.84x = 7,096,008,836.75 - Step 5: Solve for x
x = 7,096,008,836.75/87,203.84 - Step 6: Final answer
x = 81,372.66
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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.