Finding the Fourth Proportional to 69,603.76, 104,405.76 and 17,013.28
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Solution
The fourth proportional to 69,603.76, 104,405.76 and 17,013.28 is: 25,519.95
Step by Step Solution
- Step 1: Write the proportion equation
69,603.76 : 104,405.76 = 17,013.28 : x - Step 2: Convert to fraction form
69,603.76/104,405.76 = 17,013.28/x - Step 3: Cross multiply
69,603.76x = 104,405.76 × 17,013.28 - Step 4: Simplify right side
69,603.76x = 1,776,284,428.49 - Step 5: Solve for x
x = 1,776,284,428.49/69,603.76 - Step 6: Final answer
x = 25,519.95
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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.