Finding the Fourth Proportional to 75,278.58, 103,623.68 and 65,064.96
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Solution
The fourth proportional to 75,278.58, 103,623.68 and 65,064.96 is: 89,564.26
Step by Step Solution
- Step 1: Write the proportion equation
75,278.58 : 103,623.68 = 65,064.96 : x - Step 2: Convert to fraction form
75,278.58/103,623.68 = 65,064.96/x - Step 3: Cross multiply
75,278.58x = 103,623.68 × 65,064.96 - Step 4: Simplify right side
75,278.58x = 6,742,270,594.25 - Step 5: Solve for x
x = 6,742,270,594.25/75,278.58 - Step 6: Final answer
x = 89,564.26
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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.