Finding the Fourth Proportional to 70,899.97, 106,349.86 and 18,309.19
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Solution
The fourth proportional to 70,899.97, 106,349.86 and 18,309.19 is: 27,463.76
Step by Step Solution
- Step 1: Write the proportion equation
70,899.97 : 106,349.86 = 18,309.19 : x - Step 2: Convert to fraction form
70,899.97/106,349.86 = 18,309.19/x - Step 3: Cross multiply
70,899.97x = 106,349.86 × 18,309.19 - Step 4: Simplify right side
70,899.97x = 1,947,179,793.21 - Step 5: Solve for x
x = 1,947,179,793.21/70,899.97 - Step 6: Final answer
x = 27,463.76
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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.