Finding the Fourth Proportional to 73,682.49, 110,430.68 and 31,512.45
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Solution
The fourth proportional to 73,682.49, 110,430.68 and 31,512.45 is: 47,228.88
Step by Step Solution
- Step 1: Write the proportion equation
73,682.49 : 110,430.68 = 31,512.45 : x - Step 2: Convert to fraction form
73,682.49/110,430.68 = 31,512.45/x - Step 3: Cross multiply
73,682.49x = 110,430.68 × 31,512.45 - Step 4: Simplify right side
73,682.49x = 3,479,941,124.40 - Step 5: Solve for x
x = 3,479,941,124.40/73,682.49 - Step 6: Final answer
x = 47,228.88
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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.