Finding the Fourth Proportional to 67,860.08, 101,720.44 and 28,440.08
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Solution
The fourth proportional to 67,860.08, 101,720.44 and 28,440.08 is: 42,630.92
Step by Step Solution
- Step 1: Write the proportion equation
67,860.08 : 101,720.44 = 28,440.08 : x - Step 2: Convert to fraction form
67,860.08/101,720.44 = 28,440.08/x - Step 3: Cross multiply
67,860.08x = 101,720.44 × 28,440.08 - Step 4: Simplify right side
67,860.08x = 2,892,937,451.24 - Step 5: Solve for x
x = 2,892,937,451.24/67,860.08 - Step 6: Final answer
x = 42,630.92
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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.