Finding the Fourth Proportional to 73,403.09, 110,146.20 and 31,278.74
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Solution
The fourth proportional to 73,403.09, 110,146.20 and 31,278.74 is: 46,935.82
Step by Step Solution
- Step 1: Write the proportion equation
73,403.09 : 110,146.20 = 31,278.74 : x - Step 2: Convert to fraction form
73,403.09/110,146.20 = 31,278.74/x - Step 3: Cross multiply
73,403.09x = 110,146.20 × 31,278.74 - Step 4: Simplify right side
73,403.09x = 3,445,234,351.79 - Step 5: Solve for x
x = 3,445,234,351.79/73,403.09 - Step 6: Final answer
x = 46,935.82
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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.