Finding the Fourth Proportional to 75,026.91, 103,488.33 and 48,126.81
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Solution
The fourth proportional to 75,026.91, 103,488.33 and 48,126.81 is: 66,383.69
Step by Step Solution
- Step 1: Write the proportion equation
75,026.91 : 103,488.33 = 48,126.81 : x - Step 2: Convert to fraction form
75,026.91/103,488.33 = 48,126.81/x - Step 3: Cross multiply
75,026.91x = 103,488.33 × 48,126.81 - Step 4: Simplify right side
75,026.91x = 4,980,563,195.13 - Step 5: Solve for x
x = 4,980,563,195.13/75,026.91 - Step 6: Final answer
x = 66,383.69
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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.