Finding the Fourth Proportional to 74,937.75, 103,421.66 and 41,403.75
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Solution
The fourth proportional to 74,937.75, 103,421.66 and 41,403.75 is: 57,141.35
Step by Step Solution
- Step 1: Write the proportion equation
74,937.75 : 103,421.66 = 41,403.75 : x - Step 2: Convert to fraction form
74,937.75/103,421.66 = 41,403.75/x - Step 3: Cross multiply
74,937.75x = 103,421.66 × 41,403.75 - Step 4: Simplify right side
74,937.75x = 4,282,044,348.21 - Step 5: Solve for x
x = 4,282,044,348.21/74,937.75 - Step 6: Final answer
x = 57,141.35
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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.