Finding the Fourth Proportional to 84,823.80, 127,235.70 and 38,167.80
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Solution
The fourth proportional to 84,823.80, 127,235.70 and 38,167.80 is: 57,251.70
Step by Step Solution
- Step 1: Write the proportion equation
84,823.80 : 127,235.70 = 38,167.80 : x - Step 2: Convert to fraction form
84,823.80/127,235.70 = 38,167.80/x - Step 3: Cross multiply
84,823.80x = 127,235.70 × 38,167.80 - Step 4: Simplify right side
84,823.80x = 4,856,306,750.46 - Step 5: Solve for x
x = 4,856,306,750.46/84,823.80 - Step 6: Final answer
x = 57,251.70
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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.