Finding the Fourth Proportional to 86,460.87, 129,735.40 and 58,321.95
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Solution
The fourth proportional to 86,460.87, 129,735.40 and 58,321.95 is: 87,512.68
Step by Step Solution
- Step 1: Write the proportion equation
86,460.87 : 129,735.40 = 58,321.95 : x - Step 2: Convert to fraction form
86,460.87/129,735.40 = 58,321.95/x - Step 3: Cross multiply
86,460.87x = 129,735.40 × 58,321.95 - Step 4: Simplify right side
86,460.87x = 7,566,421,764.24 - Step 5: Solve for x
x = 7,566,421,764.24/86,460.87 - Step 6: Final answer
x = 87,512.68
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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.