Finding the Fourth Proportional to 74,874.41, 103,323.97 and 40,882.29
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Solution
The fourth proportional to 74,874.41, 103,323.97 and 40,882.29 is: 56,416.07
Step by Step Solution
- Step 1: Write the proportion equation
74,874.41 : 103,323.97 = 40,882.29 : x - Step 2: Convert to fraction form
74,874.41/103,323.97 = 40,882.29/x - Step 3: Cross multiply
74,874.41x = 103,323.97 × 40,882.29 - Step 4: Simplify right side
74,874.41x = 4,224,120,169.13 - Step 5: Solve for x
x = 4,224,120,169.13/74,874.41 - Step 6: Final answer
x = 56,416.07
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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.