Finding the Fourth Proportional to 87,130.17, 130,707.36 and 27,983.97
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Solution
The fourth proportional to 87,130.17, 130,707.36 and 27,983.97 is: 41,979.84
Step by Step Solution
- Step 1: Write the proportion equation
87,130.17 : 130,707.36 = 27,983.97 : x - Step 2: Convert to fraction form
87,130.17/130,707.36 = 27,983.97/x - Step 3: Cross multiply
87,130.17x = 130,707.36 × 27,983.97 - Step 4: Simplify right side
87,130.17x = 3,657,710,841.02 - Step 5: Solve for x
x = 3,657,710,841.02/87,130.17 - Step 6: Final answer
x = 41,979.84
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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.