Finding the Fourth Proportional to 86,088.57, 129,140.28 and 23,759.07
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Solution
The fourth proportional to 86,088.57, 129,140.28 and 23,759.07 is: 35,640.65
Step by Step Solution
- Step 1: Write the proportion equation
86,088.57 : 129,140.28 = 23,759.07 : x - Step 2: Convert to fraction form
86,088.57/129,140.28 = 23,759.07/x - Step 3: Cross multiply
86,088.57x = 129,140.28 × 23,759.07 - Step 4: Simplify right side
86,088.57x = 3,068,252,952.34 - Step 5: Solve for x
x = 3,068,252,952.34/86,088.57 - Step 6: Final answer
x = 35,640.65
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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.