Finding the Fourth Proportional to 69,461.12, 104,220.84 and 29,997.92
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Solution
The fourth proportional to 69,461.12, 104,220.84 and 29,997.92 is: 45,009.47
Step by Step Solution
- Step 1: Write the proportion equation
69,461.12 : 104,220.84 = 29,997.92 : x - Step 2: Convert to fraction form
69,461.12/104,220.84 = 29,997.92/x - Step 3: Cross multiply
69,461.12x = 104,220.84 × 29,997.92 - Step 4: Simplify right side
69,461.12x = 3,126,408,420.65 - Step 5: Solve for x
x = 3,126,408,420.65/69,461.12 - Step 6: Final answer
x = 45,009.47
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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.