Finding the Fourth Proportional to 76,943.80, 115,467.42 and 27,024.28
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Solution
The fourth proportional to 76,943.80, 115,467.42 and 27,024.28 is: 40,554.59
Step by Step Solution
- Step 1: Write the proportion equation
76,943.80 : 115,467.42 = 27,024.28 : x - Step 2: Convert to fraction form
76,943.80/115,467.42 = 27,024.28/x - Step 3: Cross multiply
76,943.80x = 115,467.42 × 27,024.28 - Step 4: Simplify right side
76,943.80x = 3,120,423,888.96 - Step 5: Solve for x
x = 3,120,423,888.96/76,943.80 - Step 6: Final answer
x = 40,554.59
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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.