Finding the Fourth Proportional to 76,416.80, 105,431.49 and 44,563.14
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Solution
The fourth proportional to 76,416.80, 105,431.49 and 44,563.14 is: 61,483.32
Step by Step Solution
- Step 1: Write the proportion equation
76,416.80 : 105,431.49 = 44,563.14 : x - Step 2: Convert to fraction form
76,416.80/105,431.49 = 44,563.14/x - Step 3: Cross multiply
76,416.80x = 105,431.49 × 44,563.14 - Step 4: Simplify right side
76,416.80x = 4,698,358,249.28 - Step 5: Solve for x
x = 4,698,358,249.28/76,416.80 - Step 6: Final answer
x = 61,483.32
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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.