Finding the Fourth Proportional to 68,595.80, 102,893.70 and 19,347.80
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Solution
The fourth proportional to 68,595.80, 102,893.70 and 19,347.80 is: 29,021.70
Step by Step Solution
- Step 1: Write the proportion equation
68,595.80 : 102,893.70 = 19,347.80 : x - Step 2: Convert to fraction form
68,595.80/102,893.70 = 19,347.80/x - Step 3: Cross multiply
68,595.80x = 102,893.70 × 19,347.80 - Step 4: Simplify right side
68,595.80x = 1,990,766,728.86 - Step 5: Solve for x
x = 1,990,766,728.86/68,595.80 - Step 6: Final answer
x = 29,021.70
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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.