Finding the Fourth Proportional to 75,277.32, 103,621.97 and 65,063.70
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Solution
The fourth proportional to 75,277.32, 103,621.97 and 65,063.70 is: 89,562.55
Step by Step Solution
- Step 1: Write the proportion equation
75,277.32 : 103,621.97 = 65,063.70 : x - Step 2: Convert to fraction form
75,277.32/103,621.97 = 65,063.70/x - Step 3: Cross multiply
75,277.32x = 103,621.97 × 65,063.70 - Step 4: Simplify right side
75,277.32x = 6,742,028,444.17 - Step 5: Solve for x
x = 6,742,028,444.17/75,277.32 - Step 6: Final answer
x = 89,562.55
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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.