Finding the Fourth Proportional to 84,959.80, 127,439.70 and 29,555.80
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Solution
The fourth proportional to 84,959.80, 127,439.70 and 29,555.80 is: 44,333.70
Step by Step Solution
- Step 1: Write the proportion equation
84,959.80 : 127,439.70 = 29,555.80 : x - Step 2: Convert to fraction form
84,959.80/127,439.70 = 29,555.80/x - Step 3: Cross multiply
84,959.80x = 127,439.70 × 29,555.80 - Step 4: Simplify right side
84,959.80x = 3,766,582,285.26 - Step 5: Solve for x
x = 3,766,582,285.26/84,959.80 - Step 6: Final answer
x = 44,333.70
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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.