Finding the Fourth Proportional to 98,316.24, 135,687.93 and 55,881.15
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Solution
The fourth proportional to 98,316.24, 135,687.93 and 55,881.15 is: 77,122.53
Step by Step Solution
- Step 1: Write the proportion equation
98,316.24 : 135,687.93 = 55,881.15 : x - Step 2: Convert to fraction form
98,316.24/135,687.93 = 55,881.15/x - Step 3: Cross multiply
98,316.24x = 135,687.93 × 55,881.15 - Step 4: Simplify right side
98,316.24x = 7,582,396,611.67 - Step 5: Solve for x
x = 7,582,396,611.67/98,316.24 - Step 6: Final answer
x = 77,122.53
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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.