Finding the Fourth Proportional to 69,890.40, 104,820.93 and 22,509.81
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Solution
The fourth proportional to 69,890.40, 104,820.93 and 22,509.81 is: 33,759.99
Step by Step Solution
- Step 1: Write the proportion equation
69,890.40 : 104,820.93 = 22,509.81 : x - Step 2: Convert to fraction form
69,890.40/104,820.93 = 22,509.81/x - Step 3: Cross multiply
69,890.40x = 104,820.93 × 22,509.81 - Step 4: Simplify right side
69,890.40x = 2,359,499,218.32 - Step 5: Solve for x
x = 2,359,499,218.32/69,890.40 - Step 6: Final answer
x = 33,759.99
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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.