Finding the Fourth Proportional to 96,463.78, 133,031.01 and 66,195.70
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Solution
The fourth proportional to 96,463.78, 133,031.01 and 66,195.70 is: 91,288.99
Step by Step Solution
- Step 1: Write the proportion equation
96,463.78 : 133,031.01 = 66,195.70 : x - Step 2: Convert to fraction form
96,463.78/133,031.01 = 66,195.70/x - Step 3: Cross multiply
96,463.78x = 133,031.01 × 66,195.70 - Step 4: Simplify right side
96,463.78x = 8,806,080,828.66 - Step 5: Solve for x
x = 8,806,080,828.66/96,463.78 - Step 6: Final answer
x = 91,288.99
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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.