Finding the Fourth Proportional to 103,679.05, 155,420.06 and 40,539.65
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Solution
The fourth proportional to 103,679.05, 155,420.06 and 40,539.65 is: 60,770.95
Step by Step Solution
- Step 1: Write the proportion equation
103,679.05 : 155,420.06 = 40,539.65 : x - Step 2: Convert to fraction form
103,679.05/155,420.06 = 40,539.65/x - Step 3: Cross multiply
103,679.05x = 155,420.06 × 40,539.65 - Step 4: Simplify right side
103,679.05x = 6,300,674,835.38 - Step 5: Solve for x
x = 6,300,674,835.38/103,679.05 - Step 6: Final answer
x = 60,770.95
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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.