Finding the Fourth Proportional to 71,798.24, 107,688.88 and 19,211.84
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Solution
The fourth proportional to 71,798.24, 107,688.88 and 19,211.84 is: 28,815.49
Step by Step Solution
- Step 1: Write the proportion equation
71,798.24 : 107,688.88 = 19,211.84 : x - Step 2: Convert to fraction form
71,798.24/107,688.88 = 19,211.84/x - Step 3: Cross multiply
71,798.24x = 107,688.88 × 19,211.84 - Step 4: Simplify right side
71,798.24x = 2,068,901,532.34 - Step 5: Solve for x
x = 2,068,901,532.34/71,798.24 - Step 6: Final answer
x = 28,815.49
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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.