Finding the Fourth Proportional to 70,918.40, 106,370.40 and 24,170.60
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Solution
The fourth proportional to 70,918.40, 106,370.40 and 24,170.60 is: 36,253.45
Step by Step Solution
- Step 1: Write the proportion equation
70,918.40 : 106,370.40 = 24,170.60 : x - Step 2: Convert to fraction form
70,918.40/106,370.40 = 24,170.60/x - Step 3: Cross multiply
70,918.40x = 106,370.40 × 24,170.60 - Step 4: Simplify right side
70,918.40x = 2,571,036,390.24 - Step 5: Solve for x
x = 2,571,036,390.24/70,918.40 - Step 6: Final answer
x = 36,253.45
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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.