Finding the Fourth Proportional to 68,511.58, 102,697.34 and 38,866.80
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Solution
The fourth proportional to 68,511.58, 102,697.34 and 38,866.80 is: 58,260.47
Step by Step Solution
- Step 1: Write the proportion equation
68,511.58 : 102,697.34 = 38,866.80 : x - Step 2: Convert to fraction form
68,511.58/102,697.34 = 38,866.80/x - Step 3: Cross multiply
68,511.58x = 102,697.34 × 38,866.80 - Step 4: Simplify right side
68,511.58x = 3,991,516,974.31 - Step 5: Solve for x
x = 3,991,516,974.31/68,511.58 - Step 6: Final answer
x = 58,260.47
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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.