Finding the Fourth Proportional to 75,615.36, 104,183.36 and 56,414.08
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Solution
The fourth proportional to 75,615.36, 104,183.36 and 56,414.08 is: 77,727.71
Step by Step Solution
- Step 1: Write the proportion equation
75,615.36 : 104,183.36 = 56,414.08 : x - Step 2: Convert to fraction form
75,615.36/104,183.36 = 56,414.08/x - Step 3: Cross multiply
75,615.36x = 104,183.36 × 56,414.08 - Step 4: Simplify right side
75,615.36x = 5,877,408,405.71 - Step 5: Solve for x
x = 5,877,408,405.71/75,615.36 - Step 6: Final answer
x = 77,727.71
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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.