Finding the Fourth Proportional to 71,654.20, 107,479.47 and 19,064.14
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Solution
The fourth proportional to 71,654.20, 107,479.47 and 19,064.14 is: 28,595.72
Step by Step Solution
- Step 1: Write the proportion equation
71,654.20 : 107,479.47 = 19,064.14 : x - Step 2: Convert to fraction form
71,654.20/107,479.47 = 19,064.14/x - Step 3: Cross multiply
71,654.20x = 107,479.47 × 19,064.14 - Step 4: Simplify right side
71,654.20x = 2,049,003,663.21 - Step 5: Solve for x
x = 2,049,003,663.21/71,654.20 - Step 6: Final answer
x = 28,595.72
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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.