Finding the Fourth Proportional to 69,640.79, 104,389.70 and 27,503.82
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Solution
The fourth proportional to 69,640.79, 104,389.70 and 27,503.82 is: 41,227.50
Step by Step Solution
- Step 1: Write the proportion equation
69,640.79 : 104,389.70 = 27,503.82 : x - Step 2: Convert to fraction form
69,640.79/104,389.70 = 27,503.82/x - Step 3: Cross multiply
69,640.79x = 104,389.70 × 27,503.82 - Step 4: Simplify right side
69,640.79x = 2,871,115,381.13 - Step 5: Solve for x
x = 2,871,115,381.13/69,640.79 - Step 6: Final answer
x = 41,227.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.