Finding the Fourth Proportional to 75,757.08, 104,506.32 and 57,820.95
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Solution
The fourth proportional to 75,757.08, 104,506.32 and 57,820.95 is: 79,763.56
Step by Step Solution
- Step 1: Write the proportion equation
75,757.08 : 104,506.32 = 57,820.95 : x - Step 2: Convert to fraction form
75,757.08/104,506.32 = 57,820.95/x - Step 3: Cross multiply
75,757.08x = 104,506.32 × 57,820.95 - Step 4: Simplify right side
75,757.08x = 6,042,654,703.40 - Step 5: Solve for x
x = 6,042,654,703.40/75,757.08 - Step 6: Final answer
x = 79,763.56
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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.