Finding the Fourth Proportional to 90,611.14, 135,882.08 and 29,807.26
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Solution
The fourth proportional to 90,611.14, 135,882.08 and 29,807.26 is: 44,699.50
Step by Step Solution
- Step 1: Write the proportion equation
90,611.14 : 135,882.08 = 29,807.26 : x - Step 2: Convert to fraction form
90,611.14/135,882.08 = 29,807.26/x - Step 3: Cross multiply
90,611.14x = 135,882.08 × 29,807.26 - Step 4: Simplify right side
90,611.14x = 4,050,272,487.90 - Step 5: Solve for x
x = 4,050,272,487.90/90,611.14 - Step 6: Final answer
x = 44,699.50
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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.