Finding the Fourth Proportional to 79,779.94, 119,690.41 and 29,860.75
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Solution
The fourth proportional to 79,779.94, 119,690.41 and 29,860.75 is: 44,798.80
Step by Step Solution
- Step 1: Write the proportion equation
79,779.94 : 119,690.41 = 29,860.75 : x - Step 2: Convert to fraction form
79,779.94/119,690.41 = 29,860.75/x - Step 3: Cross multiply
79,779.94x = 119,690.41 × 29,860.75 - Step 4: Simplify right side
79,779.94x = 3,574,045,541.36 - Step 5: Solve for x
x = 3,574,045,541.36/79,779.94 - Step 6: Final answer
x = 44,798.80
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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.