Finding the Fourth Proportional to 97,990.88, 135,227.48 and 55,552.14
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Solution
The fourth proportional to 97,990.88, 135,227.48 and 55,552.14 is: 76,661.99
Step by Step Solution
- Step 1: Write the proportion equation
97,990.88 : 135,227.48 = 55,552.14 : x - Step 2: Convert to fraction form
97,990.88/135,227.48 = 55,552.14/x - Step 3: Cross multiply
97,990.88x = 135,227.48 × 55,552.14 - Step 4: Simplify right side
97,990.88x = 7,512,175,623.05 - Step 5: Solve for x
x = 7,512,175,623.05/97,990.88 - Step 6: Final answer
x = 76,661.99
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1.5x scale
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.