Finding the Fourth Proportional to 85,847.99, 128,748.56 and 35,919.99
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Solution
The fourth proportional to 85,847.99, 128,748.56 and 35,919.99 is: 53,870.18
Step by Step Solution
- Step 1: Write the proportion equation
85,847.99 : 128,748.56 = 35,919.99 : x - Step 2: Convert to fraction form
85,847.99/128,748.56 = 35,919.99/x - Step 3: Cross multiply
85,847.99x = 128,748.56 × 35,919.99 - Step 4: Simplify right side
85,847.99x = 4,624,646,808.11 - Step 5: Solve for x
x = 4,624,646,808.11/85,847.99 - Step 6: Final answer
x = 53,870.18
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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.