Finding the Fourth Proportional to 69,086.93, 103,630.44 and 19,167.07
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Solution
The fourth proportional to 69,086.93, 103,630.44 and 19,167.07 is: 28,750.62
Step by Step Solution
- Step 1: Write the proportion equation
69,086.93 : 103,630.44 = 19,167.07 : x - Step 2: Convert to fraction form
69,086.93/103,630.44 = 19,167.07/x - Step 3: Cross multiply
69,086.93x = 103,630.44 × 19,167.07 - Step 4: Simplify right side
69,086.93x = 1,986,291,651.17 - Step 5: Solve for x
x = 1,986,291,651.17/69,086.93 - Step 6: Final answer
x = 28,750.62
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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.