Finding the Fourth Proportional to 97,310.60, 145,965.90 and 27,189.80
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Solution
The fourth proportional to 97,310.60, 145,965.90 and 27,189.80 is: 40,784.70
Step by Step Solution
- Step 1: Write the proportion equation
97,310.60 : 145,965.90 = 27,189.80 : x - Step 2: Convert to fraction form
97,310.60/145,965.90 = 27,189.80/x - Step 3: Cross multiply
97,310.60x = 145,965.90 × 27,189.80 - Step 4: Simplify right side
97,310.60x = 3,968,783,627.82 - Step 5: Solve for x
x = 3,968,783,627.82/97,310.60 - Step 6: Final answer
x = 40,784.70
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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.