Finding the Fourth Proportional to 75,204.05, 103,781.60 and 44,990.65
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Solution
The fourth proportional to 75,204.05, 103,781.60 and 44,990.65 is: 62,087.10
Step by Step Solution
- Step 1: Write the proportion equation
75,204.05 : 103,781.60 = 44,990.65 : x - Step 2: Convert to fraction form
75,204.05/103,781.60 = 44,990.65/x - Step 3: Cross multiply
75,204.05x = 103,781.60 × 44,990.65 - Step 4: Simplify right side
75,204.05x = 4,669,201,495.06 - Step 5: Solve for x
x = 4,669,201,495.06/75,204.05 - Step 6: Final answer
x = 62,087.10
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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.