Finding the Fourth Proportional to 87,416.49, 130,880.58 and 47,291.99
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Solution
The fourth proportional to 87,416.49, 130,880.58 and 47,291.99 is: 70,805.90
Step by Step Solution
- Step 1: Write the proportion equation
87,416.49 : 130,880.58 = 47,291.99 : x - Step 2: Convert to fraction form
87,416.49/130,880.58 = 47,291.99/x - Step 3: Cross multiply
87,416.49x = 130,880.58 × 47,291.99 - Step 4: Simplify right side
87,416.49x = 6,189,603,080.55 - Step 5: Solve for x
x = 6,189,603,080.55/87,416.49 - Step 6: Final answer
x = 70,805.90
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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.