Finding the Fourth Proportional to 91,328.36, 126,034.56 and 51,044.74
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Solution
The fourth proportional to 91,328.36, 126,034.56 and 51,044.74 is: 70,442.54
Step by Step Solution
- Step 1: Write the proportion equation
91,328.36 : 126,034.56 = 51,044.74 : x - Step 2: Convert to fraction form
91,328.36/126,034.56 = 51,044.74/x - Step 3: Cross multiply
91,328.36x = 126,034.56 × 51,044.74 - Step 4: Simplify right side
91,328.36x = 6,433,401,031.13 - Step 5: Solve for x
x = 6,433,401,031.13/91,328.36 - Step 6: Final answer
x = 70,442.54
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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.