Finding the Fourth Proportional to 84,968.40, 127,549.80 and 49,927.80
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Solution
The fourth proportional to 84,968.40, 127,549.80 and 49,927.80 is: 74,948.82
Step by Step Solution
- Step 1: Write the proportion equation
84,968.40 : 127,549.80 = 49,927.80 : x - Step 2: Convert to fraction form
84,968.40/127,549.80 = 49,927.80/x - Step 3: Cross multiply
84,968.40x = 127,549.80 × 49,927.80 - Step 4: Simplify right side
84,968.40x = 6,368,280,904.44 - Step 5: Solve for x
x = 6,368,280,904.44/84,968.40 - Step 6: Final answer
x = 74,948.82
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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.