Finding the Fourth Proportional to 74,026.36, 102,156.09 and 40,034.89
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Solution
The fourth proportional to 74,026.36, 102,156.09 and 40,034.89 is: 55,247.99
Step by Step Solution
- Step 1: Write the proportion equation
74,026.36 : 102,156.09 = 40,034.89 : x - Step 2: Convert to fraction form
74,026.36/102,156.09 = 40,034.89/x - Step 3: Cross multiply
74,026.36x = 102,156.09 × 40,034.89 - Step 4: Simplify right side
74,026.36x = 4,089,807,803.54 - Step 5: Solve for x
x = 4,089,807,803.54/74,026.36 - Step 6: Final answer
x = 55,247.99
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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.