Finding the Fourth Proportional to 86,276.18, 129,414.36 and 27,117.02
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Solution
The fourth proportional to 86,276.18, 129,414.36 and 27,117.02 is: 40,675.56
Step by Step Solution
- Step 1: Write the proportion equation
86,276.18 : 129,414.36 = 27,117.02 : x - Step 2: Convert to fraction form
86,276.18/129,414.36 = 27,117.02/x - Step 3: Cross multiply
86,276.18x = 129,414.36 × 27,117.02 - Step 4: Simplify right side
86,276.18x = 3,509,331,788.41 - Step 5: Solve for x
x = 3,509,331,788.41/86,276.18 - Step 6: Final answer
x = 40,675.56
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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.