Finding the Fourth Proportional to 75,251.07, 103,847.36 and 42,989.99
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Solution
The fourth proportional to 75,251.07, 103,847.36 and 42,989.99 is: 59,326.68
Step by Step Solution
- Step 1: Write the proportion equation
75,251.07 : 103,847.36 = 42,989.99 : x - Step 2: Convert to fraction form
75,251.07/103,847.36 = 42,989.99/x - Step 3: Cross multiply
75,251.07x = 103,847.36 × 42,989.99 - Step 4: Simplify right side
75,251.07x = 4,464,396,233.74 - Step 5: Solve for x
x = 4,464,396,233.74/75,251.07 - Step 6: Final answer
x = 59,326.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.