Finding the Fourth Proportional to 77,593.74, 116,472.05 and 68,765.55
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Solution
The fourth proportional to 77,593.74, 116,472.05 and 68,765.55 is: 103,220.50
Step by Step Solution
- Step 1: Write the proportion equation
77,593.74 : 116,472.05 = 68,765.55 : x - Step 2: Convert to fraction form
77,593.74/116,472.05 = 68,765.55/x - Step 3: Cross multiply
77,593.74x = 116,472.05 × 68,765.55 - Step 4: Simplify right side
77,593.74x = 8,009,264,286.70 - Step 5: Solve for x
x = 8,009,264,286.70/77,593.74 - Step 6: Final answer
x = 103,220.50
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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.