Finding the Fourth Proportional to 76,765.99, 115,148.99 and 29,986.06
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Solution
The fourth proportional to 76,765.99, 115,148.99 and 29,986.06 is: 44,979.09
Step by Step Solution
- Step 1: Write the proportion equation
76,765.99 : 115,148.99 = 29,986.06 : x - Step 2: Convert to fraction form
76,765.99/115,148.99 = 29,986.06/x - Step 3: Cross multiply
76,765.99x = 115,148.99 × 29,986.06 - Step 4: Simplify right side
76,765.99x = 3,452,864,810.95 - Step 5: Solve for x
x = 3,452,864,810.95/76,765.99 - Step 6: Final answer
x = 44,979.09
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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.