Finding the Fourth Proportional to 75,296.19, 112,888.11 and 45,303.41
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Solution
The fourth proportional to 75,296.19, 112,888.11 and 45,303.41 is: 67,921.31
Step by Step Solution
- Step 1: Write the proportion equation
75,296.19 : 112,888.11 = 45,303.41 : x - Step 2: Convert to fraction form
75,296.19/112,888.11 = 45,303.41/x - Step 3: Cross multiply
75,296.19x = 112,888.11 × 45,303.41 - Step 4: Simplify right side
75,296.19x = 5,114,215,767.01 - Step 5: Solve for x
x = 5,114,215,767.01/75,296.19 - Step 6: Final answer
x = 67,921.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.