Finding the Fourth Proportional to 90,232.58, 124,235.64 and 79,469.84
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Solution
The fourth proportional to 90,232.58, 124,235.64 and 79,469.84 is: 109,417.09
Step by Step Solution
- Step 1: Write the proportion equation
90,232.58 : 124,235.64 = 79,469.84 : x - Step 2: Convert to fraction form
90,232.58/124,235.64 = 79,469.84/x - Step 3: Cross multiply
90,232.58x = 124,235.64 × 79,469.84 - Step 4: Simplify right side
90,232.58x = 9,872,986,433.10 - Step 5: Solve for x
x = 9,872,986,433.10/90,232.58 - Step 6: Final answer
x = 109,417.09
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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.