Finding the Fourth Proportional to 100,089.53, 138,122.37 and 54,766.99
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Solution
The fourth proportional to 100,089.53, 138,122.37 and 54,766.99 is: 75,577.80
Step by Step Solution
- Step 1: Write the proportion equation
100,089.53 : 138,122.37 = 54,766.99 : x - Step 2: Convert to fraction form
100,089.53/138,122.37 = 54,766.99/x - Step 3: Cross multiply
100,089.53x = 138,122.37 × 54,766.99 - Step 4: Simplify right side
100,089.53x = 7,564,546,111.26 - Step 5: Solve for x
x = 7,564,546,111.26/100,089.53 - Step 6: Final answer
x = 75,577.80
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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.