Finding the Fourth Proportional to 69,027.62, 103,543.74 and 19,103.54
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Solution
The fourth proportional to 69,027.62, 103,543.74 and 19,103.54 is: 28,655.95
Step by Step Solution
- Step 1: Write the proportion equation
69,027.62 : 103,543.74 = 19,103.54 : x - Step 2: Convert to fraction form
69,027.62/103,543.74 = 19,103.54/x - Step 3: Cross multiply
69,027.62x = 103,543.74 × 19,103.54 - Step 4: Simplify right side
69,027.62x = 1,978,051,978.84 - Step 5: Solve for x
x = 1,978,051,978.84/69,027.62 - Step 6: Final answer
x = 28,655.95
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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.