Finding the Fourth Proportional to 70,951.80, 106,427.70 and 66,577.80
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Solution
The fourth proportional to 70,951.80, 106,427.70 and 66,577.80 is: 99,866.70
Step by Step Solution
- Step 1: Write the proportion equation
70,951.80 : 106,427.70 = 66,577.80 : x - Step 2: Convert to fraction form
70,951.80/106,427.70 = 66,577.80/x - Step 3: Cross multiply
70,951.80x = 106,427.70 × 66,577.80 - Step 4: Simplify right side
70,951.80x = 7,085,722,125.06 - Step 5: Solve for x
x = 7,085,722,125.06/70,951.80 - Step 6: Final answer
x = 99,866.70
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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.