Finding the Fourth Proportional to 69,472.08, 104,257.94 and 51,988.23
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Solution
The fourth proportional to 69,472.08, 104,257.94 and 51,988.23 is: 78,019.62
Step by Step Solution
- Step 1: Write the proportion equation
69,472.08 : 104,257.94 = 51,988.23 : x - Step 2: Convert to fraction form
69,472.08/104,257.94 = 51,988.23/x - Step 3: Cross multiply
69,472.08x = 104,257.94 × 51,988.23 - Step 4: Simplify right side
69,472.08x = 5,420,185,504.11 - Step 5: Solve for x
x = 5,420,185,504.11/69,472.08 - Step 6: Final answer
x = 78,019.62
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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.