Finding the Fourth Proportional to 98,247.15, 135,581.11 and 57,960.99
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Solution
The fourth proportional to 98,247.15, 135,581.11 and 57,960.99 is: 79,986.19
Step by Step Solution
- Step 1: Write the proportion equation
98,247.15 : 135,581.11 = 57,960.99 : x - Step 2: Convert to fraction form
98,247.15/135,581.11 = 57,960.99/x - Step 3: Cross multiply
98,247.15x = 135,581.11 × 57,960.99 - Step 4: Simplify right side
98,247.15x = 7,858,415,216.00 - Step 5: Solve for x
x = 7,858,415,216.00/98,247.15 - Step 6: Final answer
x = 79,986.19
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.