Finding the Fourth Proportional to 97,628.21, 134,687.17 and 63,624.31
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Solution
The fourth proportional to 97,628.21, 134,687.17 and 63,624.31 is: 87,775.63
Step by Step Solution
- Step 1: Write the proportion equation
97,628.21 : 134,687.17 = 63,624.31 : x - Step 2: Convert to fraction form
97,628.21/134,687.17 = 63,624.31/x - Step 3: Cross multiply
97,628.21x = 134,687.17 × 63,624.31 - Step 4: Simplify right side
97,628.21x = 8,569,377,999.92 - Step 5: Solve for x
x = 8,569,377,999.92/97,628.21 - Step 6: Final answer
x = 87,775.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.