Finding the Fourth Proportional to 76,590.41, 114,829.11 and 55,208.84
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Solution
The fourth proportional to 76,590.41, 114,829.11 and 55,208.84 is: 82,772.53
Step by Step Solution
- Step 1: Write the proportion equation
76,590.41 : 114,829.11 = 55,208.84 : x - Step 2: Convert to fraction form
76,590.41/114,829.11 = 55,208.84/x - Step 3: Cross multiply
76,590.41x = 114,829.11 × 55,208.84 - Step 4: Simplify right side
76,590.41x = 6,339,581,387.19 - Step 5: Solve for x
x = 6,339,581,387.19/76,590.41 - Step 6: Final answer
x = 82,772.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.