Finding the Fourth Proportional to 75,472.38, 113,212.44 and 19,312.98
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Solution
The fourth proportional to 75,472.38, 113,212.44 and 19,312.98 is: 28,970.46
Step by Step Solution
- Step 1: Write the proportion equation
75,472.38 : 113,212.44 = 19,312.98 : x - Step 2: Convert to fraction form
75,472.38/113,212.44 = 19,312.98/x - Step 3: Cross multiply
75,472.38x = 113,212.44 × 19,312.98 - Step 4: Simplify right side
75,472.38x = 2,186,469,589.47 - Step 5: Solve for x
x = 2,186,469,589.47/75,472.38 - Step 6: Final answer
x = 28,970.46
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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.