Finding the Fourth Proportional to 86,451.08, 129,442.80 and 44,810.60
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Solution
The fourth proportional to 86,451.08, 129,442.80 and 44,810.60 is: 67,094.70
Step by Step Solution
- Step 1: Write the proportion equation
86,451.08 : 129,442.80 = 44,810.60 : x - Step 2: Convert to fraction form
86,451.08/129,442.80 = 44,810.60/x - Step 3: Cross multiply
86,451.08x = 129,442.80 × 44,810.60 - Step 4: Simplify right side
86,451.08x = 5,800,409,533.68 - Step 5: Solve for x
x = 5,800,409,533.68/86,451.08 - Step 6: Final answer
x = 67,094.70
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1.5x scale
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.