Finding the Fourth Proportional to 87,511.22, 120,762.68 and 49,272.74
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Solution
The fourth proportional to 87,511.22, 120,762.68 and 49,272.74 is: 67,994.80
Step by Step Solution
- Step 1: Write the proportion equation
87,511.22 : 120,762.68 = 49,272.74 : x - Step 2: Convert to fraction form
87,511.22/120,762.68 = 49,272.74/x - Step 3: Cross multiply
87,511.22x = 120,762.68 × 49,272.74 - Step 4: Simplify right side
87,511.22x = 5,950,308,133.34 - Step 5: Solve for x
x = 5,950,308,133.34/87,511.22 - Step 6: Final answer
x = 67,994.80
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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.