Finding the Fourth Proportional to 75,293.68, 103,924.18 and 51,135.54
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Solution
The fourth proportional to 75,293.68, 103,924.18 and 51,135.54 is: 70,579.88
Step by Step Solution
- Step 1: Write the proportion equation
75,293.68 : 103,924.18 = 51,135.54 : x - Step 2: Convert to fraction form
75,293.68/103,924.18 = 51,135.54/x - Step 3: Cross multiply
75,293.68x = 103,924.18 × 51,135.54 - Step 4: Simplify right side
75,293.68x = 5,314,219,063.36 - Step 5: Solve for x
x = 5,314,219,063.36/75,293.68 - Step 6: Final answer
x = 70,579.88
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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.