Finding the Fourth Proportional to 87,655.08, 120,967.58 and 49,416.08
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Solution
The fourth proportional to 87,655.08, 120,967.58 and 49,416.08 is: 68,196.20
Step by Step Solution
- Step 1: Write the proportion equation
87,655.08 : 120,967.58 = 49,416.08 : x - Step 2: Convert to fraction form
87,655.08/120,967.58 = 49,416.08/x - Step 3: Cross multiply
87,655.08x = 120,967.58 × 49,416.08 - Step 4: Simplify right side
87,655.08x = 5,977,743,610.69 - Step 5: Solve for x
x = 5,977,743,610.69/87,655.08 - Step 6: Final answer
x = 68,196.20
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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.