Finding the Fourth Proportional to 89,099.84, 122,911.12 and 55,097.48
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Solution
The fourth proportional to 89,099.84, 122,911.12 and 55,097.48 is: 76,005.67
Step by Step Solution
- Step 1: Write the proportion equation
89,099.84 : 122,911.12 = 55,097.48 : x - Step 2: Convert to fraction form
89,099.84/122,911.12 = 55,097.48/x - Step 3: Cross multiply
89,099.84x = 122,911.12 × 55,097.48 - Step 4: Simplify right side
89,099.84x = 6,772,092,975.98 - Step 5: Solve for x
x = 6,772,092,975.98/89,099.84 - Step 6: Final answer
x = 76,005.67
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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.