Finding the Fourth Proportional to 84,784.80, 127,197.18 and 25,620.96
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Solution
The fourth proportional to 84,784.80, 127,197.18 and 25,620.96 is: 38,437.48
Step by Step Solution
- Step 1: Write the proportion equation
84,784.80 : 127,197.18 = 25,620.96 : x - Step 2: Convert to fraction form
84,784.80/127,197.18 = 25,620.96/x - Step 3: Cross multiply
84,784.80x = 127,197.18 × 25,620.96 - Step 4: Simplify right side
84,784.80x = 3,258,913,860.89 - Step 5: Solve for x
x = 3,258,913,860.89/84,784.80 - Step 6: Final answer
x = 38,437.48
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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.