Finding the Fourth Proportional to 71,798.58, 107,697.84 and 19,206.70
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Solution
The fourth proportional to 71,798.58, 107,697.84 and 19,206.70 is: 28,810.04
Step by Step Solution
- Step 1: Write the proportion equation
71,798.58 : 107,697.84 = 19,206.70 : x - Step 2: Convert to fraction form
71,798.58/107,697.84 = 19,206.70/x - Step 3: Cross multiply
71,798.58x = 107,697.84 × 19,206.70 - Step 4: Simplify right side
71,798.58x = 2,068,520,103.53 - Step 5: Solve for x
x = 2,068,520,103.53/71,798.58 - Step 6: Final answer
x = 28,810.04
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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.