Finding the Fourth Proportional to 74,911.14, 103,418.88 and 51,072.84
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Solution
The fourth proportional to 74,911.14, 103,418.88 and 51,072.84 is: 70,508.82
Step by Step Solution
- Step 1: Write the proportion equation
74,911.14 : 103,418.88 = 51,072.84 : x - Step 2: Convert to fraction form
74,911.14/103,418.88 = 51,072.84/x - Step 3: Cross multiply
74,911.14x = 103,418.88 × 51,072.84 - Step 4: Simplify right side
74,911.14x = 5,281,895,911.22 - Step 5: Solve for x
x = 5,281,895,911.22/74,911.14 - Step 6: Final answer
x = 70,508.82
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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.