Finding the Fourth Proportional to 78,576.24, 117,864.36 and 64,696.08
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Solution
The fourth proportional to 78,576.24, 117,864.36 and 64,696.08 is: 97,044.12
Step by Step Solution
- Step 1: Write the proportion equation
78,576.24 : 117,864.36 = 64,696.08 : x - Step 2: Convert to fraction form
78,576.24/117,864.36 = 64,696.08/x - Step 3: Cross multiply
78,576.24x = 117,864.36 × 64,696.08 - Step 4: Simplify right side
78,576.24x = 7,625,362,063.71 - Step 5: Solve for x
x = 7,625,362,063.71/78,576.24 - Step 6: Final answer
x = 97,044.12
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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.