Finding the Fourth Proportional to 91,113.84, 125,715.68 and 55,302.96
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Solution
The fourth proportional to 91,113.84, 125,715.68 and 55,302.96 is: 76,305.08
Step by Step Solution
- Step 1: Write the proportion equation
91,113.84 : 125,715.68 = 55,302.96 : x - Step 2: Convert to fraction form
91,113.84/125,715.68 = 55,302.96/x - Step 3: Cross multiply
91,113.84x = 125,715.68 × 55,302.96 - Step 4: Simplify right side
91,113.84x = 6,952,449,222.41 - Step 5: Solve for x
x = 6,952,449,222.41/91,113.84 - Step 6: Final answer
x = 76,305.08
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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.