Finding the Fourth Proportional to 73,476.99, 110,219.31 and 20,890.53
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Solution
The fourth proportional to 73,476.99, 110,219.31 and 20,890.53 is: 31,336.88
Step by Step Solution
- Step 1: Write the proportion equation
73,476.99 : 110,219.31 = 20,890.53 : x - Step 2: Convert to fraction form
73,476.99/110,219.31 = 20,890.53/x - Step 3: Cross multiply
73,476.99x = 110,219.31 × 20,890.53 - Step 4: Simplify right side
73,476.99x = 2,302,539,802.13 - Step 5: Solve for x
x = 2,302,539,802.13/73,476.99 - Step 6: Final answer
x = 31,336.88
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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.