Finding the Fourth Proportional to 72,924.87, 100,669.92 and 42,705.99
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Solution
The fourth proportional to 72,924.87, 100,669.92 and 42,705.99 is: 58,953.94
Step by Step Solution
- Step 1: Write the proportion equation
72,924.87 : 100,669.92 = 42,705.99 : x - Step 2: Convert to fraction form
72,924.87/100,669.92 = 42,705.99/x - Step 3: Cross multiply
72,924.87x = 100,669.92 × 42,705.99 - Step 4: Simplify right side
72,924.87x = 4,299,208,596.82 - Step 5: Solve for x
x = 4,299,208,596.82/72,924.87 - Step 6: Final answer
x = 58,953.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.