Finding the Fourth Proportional to 107,579.70, 161,401.95 and 57,683.70
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Solution
The fourth proportional to 107,579.70, 161,401.95 and 57,683.70 is: 86,542.92
Step by Step Solution
- Step 1: Write the proportion equation
107,579.70 : 161,401.95 = 57,683.70 : x - Step 2: Convert to fraction form
107,579.70/161,401.95 = 57,683.70/x - Step 3: Cross multiply
107,579.70x = 161,401.95 × 57,683.70 - Step 4: Simplify right side
107,579.70x = 9,310,261,663.22 - Step 5: Solve for x
x = 9,310,261,663.22/107,579.70 - Step 6: Final answer
x = 86,542.92
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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.