Finding the Fourth Proportional to 85,497.49, 128,246.20 and 23,167.99
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Solution
The fourth proportional to 85,497.49, 128,246.20 and 23,167.99 is: 34,751.98
Step by Step Solution
- Step 1: Write the proportion equation
85,497.49 : 128,246.20 = 23,167.99 : x - Step 2: Convert to fraction form
85,497.49/128,246.20 = 23,167.99/x - Step 3: Cross multiply
85,497.49x = 128,246.20 × 23,167.99 - Step 4: Simplify right side
85,497.49x = 2,971,206,679.14 - Step 5: Solve for x
x = 2,971,206,679.14/85,497.49 - Step 6: Final answer
x = 34,751.98
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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.