Finding the Fourth Proportional to 72,948.99, 100,752.64 and 49,034.14
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Solution
The fourth proportional to 72,948.99, 100,752.64 and 49,034.14 is: 67,722.93
Step by Step Solution
- Step 1: Write the proportion equation
72,948.99 : 100,752.64 = 49,034.14 : x - Step 2: Convert to fraction form
72,948.99/100,752.64 = 49,034.14/x - Step 3: Cross multiply
72,948.99x = 100,752.64 × 49,034.14 - Step 4: Simplify right side
72,948.99x = 4,940,319,055.13 - Step 5: Solve for x
x = 4,940,319,055.13/72,948.99 - Step 6: Final answer
x = 67,722.93
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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.