Finding the Fourth Proportional to 75,175.18, 103,691.80 and 48,351.62
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Solution
The fourth proportional to 75,175.18, 103,691.80 and 48,351.62 is: 66,693.11
Step by Step Solution
- Step 1: Write the proportion equation
75,175.18 : 103,691.80 = 48,351.62 : x - Step 2: Convert to fraction form
75,175.18/103,691.80 = 48,351.62/x - Step 3: Cross multiply
75,175.18x = 103,691.80 × 48,351.62 - Step 4: Simplify right side
75,175.18x = 5,013,666,510.72 - Step 5: Solve for x
x = 5,013,666,510.72/75,175.18 - Step 6: Final answer
x = 66,693.11
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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.