Finding the Fourth Proportional to 115,420.45, 173,108.80 and 40,522.99
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Solution
The fourth proportional to 115,420.45, 173,108.80 and 40,522.99 is: 60,776.80
Step by Step Solution
- Step 1: Write the proportion equation
115,420.45 : 173,108.80 = 40,522.99 : x - Step 2: Convert to fraction form
115,420.45/173,108.80 = 40,522.99/x - Step 3: Cross multiply
115,420.45x = 173,108.80 × 40,522.99 - Step 4: Simplify right side
115,420.45x = 7,014,886,171.31 - Step 5: Solve for x
x = 7,014,886,171.31/115,420.45 - Step 6: Final answer
x = 60,776.80
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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.