Finding the Fourth Proportional to 69,009.21, 103,513.85 and 21,627.99
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Solution
The fourth proportional to 69,009.21, 103,513.85 and 21,627.99 is: 32,442.00
Step by Step Solution
- Step 1: Write the proportion equation
69,009.21 : 103,513.85 = 21,627.99 : x - Step 2: Convert to fraction form
69,009.21/103,513.85 = 21,627.99/x - Step 3: Cross multiply
69,009.21x = 103,513.85 × 21,627.99 - Step 4: Simplify right side
69,009.21x = 2,238,796,733.78 - Step 5: Solve for x
x = 2,238,796,733.78/69,009.21 - Step 6: Final answer
x = 32,442.00
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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.