Finding the Fourth Proportional to 68,281.76, 102,360.18 and 57,819.08
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Solution
The fourth proportional to 68,281.76, 102,360.18 and 57,819.08 is: 86,675.73
Step by Step Solution
- Step 1: Write the proportion equation
68,281.76 : 102,360.18 = 57,819.08 : x - Step 2: Convert to fraction form
68,281.76/102,360.18 = 57,819.08/x - Step 3: Cross multiply
68,281.76x = 102,360.18 × 57,819.08 - Step 4: Simplify right side
68,281.76x = 5,918,371,436.23 - Step 5: Solve for x
x = 5,918,371,436.23/68,281.76 - Step 6: Final answer
x = 86,675.73
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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.