Finding the Fourth Proportional to 79,412.16, 119,138.91 and 29,506.65
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Solution
The fourth proportional to 79,412.16, 119,138.91 and 29,506.65 is: 44,267.66
Step by Step Solution
- Step 1: Write the proportion equation
79,412.16 : 119,138.91 = 29,506.65 : x - Step 2: Convert to fraction form
79,412.16/119,138.91 = 29,506.65/x - Step 3: Cross multiply
79,412.16x = 119,138.91 × 29,506.65 - Step 4: Simplify right side
79,412.16x = 3,515,390,118.75 - Step 5: Solve for x
x = 3,515,390,118.75/79,412.16 - Step 6: Final answer
x = 44,267.66
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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.