Finding the Fourth Proportional to 94,045.20, 129,782.35 and 53,759.82
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Solution
The fourth proportional to 94,045.20, 129,782.35 and 53,759.82 is: 74,188.55
Step by Step Solution
- Step 1: Write the proportion equation
94,045.20 : 129,782.35 = 53,759.82 : x - Step 2: Convert to fraction form
94,045.20/129,782.35 = 53,759.82/x - Step 3: Cross multiply
94,045.20x = 129,782.35 × 53,759.82 - Step 4: Simplify right side
94,045.20x = 6,977,076,329.06 - Step 5: Solve for x
x = 6,977,076,329.06/94,045.20 - Step 6: Final answer
x = 74,188.55
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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.