Finding the Fourth Proportional to 69,690.40, 104,539.58 and 19,766.58
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Solution
The fourth proportional to 69,690.40, 104,539.58 and 19,766.58 is: 29,650.99
Step by Step Solution
- Step 1: Write the proportion equation
69,690.40 : 104,539.58 = 19,766.58 : x - Step 2: Convert to fraction form
69,690.40/104,539.58 = 19,766.58/x - Step 3: Cross multiply
69,690.40x = 104,539.58 × 19,766.58 - Step 4: Simplify right side
69,690.40x = 2,066,389,498.91 - Step 5: Solve for x
x = 2,066,389,498.91/69,690.40 - Step 6: Final answer
x = 29,650.99
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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.