Finding the Fourth Proportional to 69,798.42, 104,698.18 and 19,878.44
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Solution
The fourth proportional to 69,798.42, 104,698.18 and 19,878.44 is: 29,817.82
Step by Step Solution
- Step 1: Write the proportion equation
69,798.42 : 104,698.18 = 19,878.44 : x - Step 2: Convert to fraction form
69,798.42/104,698.18 = 19,878.44/x - Step 3: Cross multiply
69,798.42x = 104,698.18 × 19,878.44 - Step 4: Simplify right side
69,798.42x = 2,081,236,489.24 - Step 5: Solve for x
x = 2,081,236,489.24/69,798.42 - Step 6: Final answer
x = 29,817.82
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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.