Finding the Fourth Proportional to 75,844.16, 113,765.32 and 19,679.26
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Solution
The fourth proportional to 75,844.16, 113,765.32 and 19,679.26 is: 29,518.66
Step by Step Solution
- Step 1: Write the proportion equation
75,844.16 : 113,765.32 = 19,679.26 : x - Step 2: Convert to fraction form
75,844.16/113,765.32 = 19,679.26/x - Step 3: Cross multiply
75,844.16x = 113,765.32 × 19,679.26 - Step 4: Simplify right side
75,844.16x = 2,238,817,478.07 - Step 5: Solve for x
x = 2,238,817,478.07/75,844.16 - Step 6: Final answer
x = 29,518.66
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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.