Finding the Fourth Proportional to 77,604.96, 116,505.90 and 65,991.99
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Solution
The fourth proportional to 77,604.96, 116,505.90 and 65,991.99 is: 99,071.71
Step by Step Solution
- Step 1: Write the proportion equation
77,604.96 : 116,505.90 = 65,991.99 : x - Step 2: Convert to fraction form
77,604.96/116,505.90 = 65,991.99/x - Step 3: Cross multiply
77,604.96x = 116,505.90 × 65,991.99 - Step 4: Simplify right side
77,604.96x = 7,688,456,187.74 - Step 5: Solve for x
x = 7,688,456,187.74/77,604.96 - Step 6: Final answer
x = 99,071.71
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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.