Finding the Fourth Proportional to 75,968.34, 113,957.36 and 29,221.21
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Solution
The fourth proportional to 75,968.34, 113,957.36 and 29,221.21 is: 43,833.68
Step by Step Solution
- Step 1: Write the proportion equation
75,968.34 : 113,957.36 = 29,221.21 : x - Step 2: Convert to fraction form
75,968.34/113,957.36 = 29,221.21/x - Step 3: Cross multiply
75,968.34x = 113,957.36 × 29,221.21 - Step 4: Simplify right side
75,968.34x = 3,329,971,947.61 - Step 5: Solve for x
x = 3,329,971,947.61/75,968.34 - Step 6: Final answer
x = 43,833.68
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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.